results

HAT-P-44 b

Timing Plot

Total Reductions to Date: 26

Date Processed: 09/06/2025 at 07:00:04 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 4.301191690429094 3.3313468808448786e-07
Ephemeris (BJD_TDB) 2460049.7431149376 0.0002465945161691028
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 213.1438604 decimal
DEC 47.0147826 decimal
Host Star Metallicity 0.33 0.1 Kokori et al. 2023
Host Star log(g) 4.46 0.06 Log10(cgs) Kokori et al. 2023
Host Star Radius [R_Sun] 0.949 0.08 Sol Kokori et al. 2023
Host Star Effective Temperature [K] 5295.0 100.0 K Kokori et al. 2023
a/Rs 11.5 0.5 Kokori et al. 2023
eccentricity 0.044 0.052 Hartman et al. 2014
inclination [degrees] 89.1 0.4 deg Kokori et al. 2023
omega [degrees] 113.0 90.0 deg Hartman et al. 2014
orbital period [days] 4.30119043 8.2e-07 day Kokori et al. 2023
Rp 15.37 1.05 R_Earth ExoFOP-TESS TOI
Rp/Rs 0.1485 0 ExoFOP-TESS TOI
ephemeris [JD] 2457679.78645 0.00028 BJD-TDB Kokori et al. 2023

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2457679.78645 0.00028 BJD-TDB Kokori et al. 2023
2457133.53487 0.00042 BJD-TDB Ivshina & Winn 2022
2457284.0768 0.0004 BJD-TDB Kokori et al. 2022
2456204.47794 0.00019 BJD-TDB Mallonn et al. 2019
2459688.443452 0.0005032 BJD ExoFOP-TESS TOI
2455696.93695 0.00024 BJD Hartman et al. 2014

Observations

Light curve chart for 0000489
Parameter Value Uncertainty
Am1 0.442 0.0065
Am2 0.001 0.015
a/Rs 13.5 1.61
Rp/Rs 0.136 0.016
ephemeris [JD] 2457808.8285 0.0099
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 1.8648665291579376
u1 -3.233026320253753
u2 3.6446516398649855
u3 -1.2764917944596288
duration 0.109 0.015
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV Clear (unfiltered) reduced to V sequence 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO FMAA (collaborate/publish)
Light curve chart for 0000488
Parameter Value Uncertainty
Am1 1230.58 25.63
Am2 -0.151 0.017
a/Rs 9.05 1.32
Rp/Rs 0.155 0.02
ephemeris [JD] 2457864.7584 0.0059
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 1.8646090931038102
u1 -3.2327080584085937
u2 3.6448264119410694
u3 -1.27672739232414
duration 0.166 0.025
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV Clear (unfiltered) reduced to V sequence 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO FMAA (collaborate/publish)
Light curve chart for 0001223
Parameter Value Uncertainty
Am1 1.0033 0.0053
Am2 -0.002 0.0049
a/Rs 11.39 0.4
Rp/Rs 0.1376 0.006
ephemeris [JD] 2459623.9259 0.0018
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 1.5767418568024023
u1 -2.666662965658631
u2 3.243037394302504
u3 -1.153116237121253
duration 0.1301 0.0047
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
V Johnson V 502.8 nm 586.8 nm
Organization Observer Code Secondary Observers
AAVSO CCHD (collaborate/publish)
Light curve chart for 0001366
Parameter Value Uncertainty
Am1 1.128 0.025
Am2 -0.098 0.05
a/Rs 9.55 1.16
Rp/Rs 0.17 0.024
ephemeris [JD] 2459679.853 0.006
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 1.9245984939930991
u1 -3.198081798954204
u2 3.508157924349154
u3 -1.2346745671124224
duration 0.147 0.012
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
NA Custom 600.0 nm 690.0 nm
Organization Observer Code Secondary Observers
AAVSO MAEB (collaborate/publish)
Light curve chart for 0001415
Parameter Value Uncertainty
Am1 1.098 0.018
Am2 -0.085 0.043
a/Rs 13.5 0.85
Rp/Rs 0.116 0.017
ephemeris [JD] 2459692.7488 0.0046
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 1.8642470632948296
u1 -3.2319292851420034
u2 3.6439521913684376
u3 -1.2762699152221448
duration 0.1074 0.0073
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV Clear (unfiltered) reduced to V sequence 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO NANF (collaborate/publish)
Light curve chart for 0002757
Parameter Value Uncertainty
Am1 1.0043 0.0049
Am2 0.0027 0.0026
a/Rs 11.53 0.35
Rp/Rs 0.1377 0.0028
ephemeris [JD] 2459989.5283 0.0015
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 1.5769022231409096
u1 -2.6671920134852636
u2 3.243813881198365
u3 -1.1535240425174171
duration 0.1284 0.004
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
V Johnson V 502.8 nm 586.8 nm
Organization Observer Code Secondary Observers
AAVSO HMAK (collaborate/publish)
Light curve chart for 0003218
Parameter Value Uncertainty
Am1 1.0011 0.0033
Am2 -0.0013 0.0087
a/Rs 11.76 0.49
Rp/Rs 0.1338 0.0059
ephemeris [JD] 2460049.7416 0.0026
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 1.8661120702561904
u1 -3.237635647748848
u2 3.650880675338165
u3 -1.2793570434431456
duration 0.125 0.0054
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
CV MObs CV 350.0 nm 850.0 nm
Organization Observer Code Secondary Observers
AAVSO MBEB (collaborate/publish)
Light curve chart for 70b2b4b7658b5077a0b43e23ad1b3def
Parameter Value Uncertainty
Am1 1.0 0.0038
Am2 0
a/Rs 11.7 0.22
Rp/Rs 0.1301 0.0021
ephemeris [JD] 2459675.53888 0.00097
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.4438112253520083
u1 -4.250078843546483
u2 4.2793764574547
u3 -1.4731087754925474
duration 0.1255 0.0025
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 70019924cfb2f8253bb2c7a1a216b005
Parameter Value Uncertainty
Am1 1.0001 0.0038
Am2 0
a/Rs 11.43 0.2
Rp/Rs 0.1328 0.0021
ephemeris [JD] 2458952.93955 0.00095
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.444230804509124
u1 -4.251484569759382
u2 4.28110891784361
u3 -1.4738550887998572
duration 0.1288 0.0024
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 3df37fd5dfe114d1fe8d78cedb56479f
Parameter Value Uncertainty
Am1 1.0003 0.0012
Am2 0
a/Rs 11.27 0.65
Rp/Rs 0.1306 0.0054
ephemeris [JD] 2458746.4807 0.0031
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.4440150667639062
u1 -4.250318950413812
u2 4.279402048038761
u3 -1.473098100620796
duration 0.1301 0.008
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 548df51686b9b9bae6c378292583b9c5
Parameter Value Uncertainty
Am1 0.9995 0.0039
Am2 0
a/Rs 11.69 0.22
Rp/Rs 0.1366 0.0021
ephemeris [JD] 2458940.03373 0.00097
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.444418388778968
u1 -4.251984694191096
u2 4.281487427437497
u3 -1.4739210582262343
duration 0.1262 0.0025
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 193946aa8ff3b7025c63e30b6a1b941e
Parameter Value Uncertainty
Am1 0.9989 0.0045
Am2 0
a/Rs 11.05 0.34
Rp/Rs 0.1306 0.0036
ephemeris [JD] 2458935.7376 0.0017
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.444287503893032
u1 -4.2514428621719365
u2 4.280834575262741
u3 -1.4736791531944298
duration 0.1334 0.0041
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for a02f2a95211df8781dcfc27f18f9fe18
Parameter Value Uncertainty
Am1 0.9997 0.0041
Am2 0
a/Rs 11.76 0.23
Rp/Rs 0.1269 0.0023
ephemeris [JD] 2459688.4414 0.001
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.444758526554447
u1 -4.252802031483506
u2 4.282331495728161
u3 -1.474287926987389
duration 0.1248 0.0025
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 96c35ae2db18a87b694fc9d8c22edf98
Parameter Value Uncertainty
Am1 1.00021 0.00097
Am2 0
a/Rs 11.73 0.63
Rp/Rs 0.1332 0.005
ephemeris [JD] 2458742.1811 0.0029
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.4441829187781834
u1 -4.2522475716253885
u2 4.282449598315859
u3 -1.474384881655182
duration 0.1259 0.0071
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 626767acb0ed115c4ac775a40cbc85c4
Parameter Value Uncertainty
Am1 0.9999 0.0011
Am2 0
a/Rs 11.57 0.68
Rp/Rs 0.1319 0.0053
ephemeris [JD] 2458755.0826 0.0032
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.444119233422337
u1 -4.251062626729127
u2 4.280536345599758
u3 -1.4735928885080058
duration 0.128 0.0077
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for c3501d593764bc6406c21e23f6cda3fe
Parameter Value Uncertainty
Am1 1.0003 0.0043
Am2 0
a/Rs 11.51 0.25
Rp/Rs 0.1254 0.0023
ephemeris [JD] 2459684.1412 0.0011
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.4441740311026896
u1 -4.250722762823072
u2 4.279788116369882
u3 -1.4732393208756873
duration 0.1269 0.0029
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 0d7097443d8db5ffdf6beb38fa1a6d67
Parameter Value Uncertainty
Am1 1.0001 0.0039
Am2 0
a/Rs 11.4 0.2
Rp/Rs 0.1301 0.0021
ephemeris [JD] 2459645.43291 0.00095
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.4445558045668347
u1 -4.2521261461018725
u2 4.281610826665539
u3 -1.474040421329529
duration 0.1291 0.0024
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for eb42c222dd625ba831d3aca6ce40610c
Parameter Value Uncertainty
Am1 1.0001 0.004
Am2 0
a/Rs 11.44 0.23
Rp/Rs 0.1311 0.0022
ephemeris [JD] 2459658.3345 0.001
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.443748707524752
u1 -4.25069122990843
u2 4.280657298638835
u3 -1.473714712468393
duration 0.1288 0.0028
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 6df868cb3b4cb05084ba8d475e61d4eb
Parameter Value Uncertainty
Am1 1.00004 0.00086
Am2 0
a/Rs 11.12 0.75
Rp/Rs 0.1314 0.0048
ephemeris [JD] 2458759.3832 0.0032
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.4438266187282007
u1 -4.250390225920518
u2 4.2798464481611385
u3 -1.4732827771941386
duration 0.1326 0.0092
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 751b6f036500319ad458616458fa9433
Parameter Value Uncertainty
Am1 0.9996 0.0042
Am2 0
a/Rs 11.39 0.21
Rp/Rs 0.13 0.0023
ephemeris [JD] 2459671.23803 0.00098
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.444590462118173
u1 -4.25222202178336
u2 4.281583812146682
u3 -1.473952188680924
duration 0.1288 0.0025
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for e0af44356467787954c8a0b6fbbdff40
Parameter Value Uncertainty
Am1 0.9997 0.0045
Am2 0
a/Rs 11.47 0.23
Rp/Rs 0.1278 0.0023
ephemeris [JD] 2459641.1308 0.0011
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.444159162397044
u1 -4.251066923203051
u2 4.280447472032804
u3 -1.4735396474431588
duration 0.1281 0.0026
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for ed9f3264fae7d3e83f48209b052587c7
Parameter Value Uncertainty
Am1 0.9999 0.0041
Am2 0
a/Rs 11.36 0.22
Rp/Rs 0.1339 0.0023
ephemeris [JD] 2459649.73253 0.001
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.4443738585768306
u1 -4.2519835460136886
u2 4.281606157982211
u3 -1.4739964067444493
duration 0.1298 0.0026
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for bf188169bfeb78a08cf2603bbd03cf34
Parameter Value Uncertainty
Am1 1.0007 0.0044
Am2 0
a/Rs 11.57 0.27
Rp/Rs 0.1353 0.0025
ephemeris [JD] 2458944.3373 0.0012
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.44465151911945
u1 -4.252706718733741
u2 4.282383748594963
u3 -1.474328485168182
duration 0.1276 0.0031
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for a4e38e64d0cae3a7a94d60840e4bae1a
Parameter Value Uncertainty
Am1 1.0004 0.0043
Am2 0
a/Rs 11.21 0.2
Rp/Rs 0.1283 0.0022
ephemeris [JD] 2458948.638 0.00099
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.443674815981126
u1 -4.249452704273024
u2 4.278556041350784
u3 -1.472778089303433
duration 0.131 0.0024
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for bf2e91dd6d315f3ef5aa51ed60602872
Parameter Value Uncertainty
Am1 1.0002 0.0043
Am2 0
a/Rs 11.12 0.21
Rp/Rs 0.1318 0.0023
ephemeris [JD] 2458931.4314 0.0011
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.4444296978729443
u1 -4.25137843381994
u2 4.280340170711249
u3 -1.4733913709822155
duration 0.1327 0.0026
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 991190c7a61497b270919adfefd908b4
Parameter Value Uncertainty
Am1 1.0 0.0039
Am2 0
a/Rs 11.87 0.22
Rp/Rs 0.1329 0.0023
ephemeris [JD] 2459662.6348 0.00096
eccentricity 0.044
inclination [degrees] 89.1
omega [degrees] 113.0
orbital period [days] 4.30119043
u0 2.443873011601001
u1 -4.250455196236537
u2 4.279900420353771
u3 -1.4733181719427488
duration 0.1246 0.0025
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)