results

K2-295 b

Timing Plot

Total Reductions to Date: 13

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

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 4.024885656615297 8.294359520035571e-07
Ephemeris (BJD_TDB) 2460228.9334669854 0.000570677167774916
Time saved (hours) -  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 19.6101417 decimal
DEC 6.8167277 decimal
Host Star Metallicity 0.14 0.12 Kokori et al. 2023
Host Star log(g) 4.63 0.12 Log10(cgs) Kokori et al. 2023
Host Star Radius [R_Sun] 0.7 0.02 Sol Kokori et al. 2023
Host Star Effective Temperature [K] 4444.0 70.0 K Kokori et al. 2023
a/Rs 13.76 0.19 Kokori et al. 2023
eccentricity 0.0 Smith et al. 2019
inclination [degrees] 89.3 0.46 deg Kokori et al. 2023
omega [degrees] 0.0 deg Kokori et al. 2023
orbital period [days] 4.02488968 7.7e-07 day Kokori et al. 2023
Rp 9.56 0.71 R_Earth Kruse et al. 2019
Rp/Rs 0.1479 0 Kruse et al. 2019
ephemeris [JD] 2457624.83244 0.00012 BJD-TDB Kokori et al. 2023

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2457395.4139666003 6.606666666666667e-05 BJD, BJD-TDB Kruse et al. 2019, Smith et al. 2019, Petigura et al. 2018
2457624.83244 0.00012 BJD-TDB Kokori et al. 2023
2460228.933083 0.0007028 BJD ExoFOP-TESS TOI

Observations

Light curve chart for 0003202
Parameter Value Uncertainty
Am1 0.953 0.027
Am2 0.033 0.0073
a/Rs 12.83 0.55
Rp/Rs 0.135 0.026
ephemeris [JD] 2459218.6914 0.0069
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.303924212667676
u1 -2.1847666831836925
u2 2.844758647679795
u3 -0.9639161347735714
duration 0.1125 0.0058
Not 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 PAIB (collaborate/publish) MOBS
Light curve chart for 0003515
Parameter Value Uncertainty
Am1 1.038 0.038
Am2 -0.012 0.021
a/Rs 14.69 0.55
Rp/Rs 0.113 0.048
ephemeris [JD] 2459528.626 0.012
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.3032841188452466
u1 -2.1826944831975608
u2 2.8420893556970386
u3 -0.9626789489942928
duration 0.0949 0.0061
Not 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 WMIF (collaborate/publish) MOBS
Light curve chart for 0006430
Parameter Value Uncertainty
Am1 1.0 0.047
Am2 0.018 0.036
a/Rs 14.71 0.51
Rp/Rs 0.225 0.03
ephemeris [JD] 2459532.6107 0.0045
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.3040023015983553
u1 -2.1840639572681524
u2 2.843656100282556
u3 -0.9635944022389813
duration 0.0963 0.0052
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 LIGA (collaborate/publish) MOBS
Light curve chart for 0004953
Parameter Value Uncertainty
Am1 1.3 0.12
Am2 -0.18 0.13
a/Rs 14.66 0.54
Rp/Rs 0.241 0.083
ephemeris [JD] 2459536.659 0.011
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.3037489098814796
u1 -2.1833400851450038
u2 2.84260675107404
u3 -0.9630155334523742
duration 0.088 0.011
Not 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 MJAT (collaborate/publish) MOBS
Light curve chart for 0010473
Parameter Value Uncertainty
Am1 1.33 0.25
Am2 -0.2 0.25
a/Rs 14.68 0.55
Rp/Rs 0.271 0.086
ephemeris [JD] 2459536.634 0.011
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.645036260158762
u1 -2.8012940583220387
u2 3.2837387720865796
u3 -1.1274809249917817
duration 0.0977 0.0084
Not 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 GMAU (collaborate/publish)
Light curve chart for 0011760
Parameter Value Uncertainty
Am1 0.901 0.023
Am2 0.088 0.077
a/Rs 13.34 0.54
Rp/Rs 0.126 0.042
ephemeris [JD] 2459878.7613 0.0079
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.303357839870055
u1 -2.182979503917925
u2 2.8423504814859455
u3 -0.9627287750837525
duration 0.1072 0.0058
Not 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 HMAS (collaborate/publish) MOBS
Light curve chart for 0002183
Parameter Value Uncertainty
Am1 1.155 0.029
Am2 -0.118 0.047
a/Rs 12.83 0.51
Rp/Rs 0.13 0.019
ephemeris [JD] 2459882.8118 0.0031
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.9824668455448884
u1 -3.3542453436533073
u2 3.6396265954616283
u3 -1.2678480431185468
duration 0.1119 0.0048
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
NA Custom 690.0 nm 819.0 nm
Organization Observer Code Secondary Observers
AAVSO DSCC (collaborate/publish) BPAG
Light curve chart for 0002190
Parameter Value Uncertainty
Am1 0.951 0.012
Am2 0.042 0.048
a/Rs 14.63 0.54
Rp/Rs 0.12 0.037
ephemeris [JD] 2459882.7978 0.0097
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 2.1364812418180876
u1 -3.6757211670885646
u2 3.895113702969023
u3 -1.3558737196568287
duration 0.0966 0.005
Not 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
AAVSO LPAC (collaborate/publish)
Light curve chart for 0002101
Parameter Value Uncertainty
Am1 1.069 0.012
Am2 -0.058 0.038
a/Rs 14.68 0.52
Rp/Rs 0.144 0.015
ephemeris [JD] 2459886.8164 0.0052
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 2.135952276085137
u1 -3.6721403733526987
u2 3.8899781814623924
u3 -1.3537900262296385
duration 0.0983 0.0038
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
AAVSO LPAC (collaborate/publish)
Light curve chart for 0004634
Parameter Value Uncertainty
Am1 0.9834 0.0052
Am2 0.0123 0.0029
a/Rs 14.58 0.37
Rp/Rs 0.1251 0.0045
ephemeris [JD] 2460208.8083 0.0015
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.6451570611463329
u1 -2.801567859788132
u2 3.2838809055391804
u3 -1.1274700579637429
duration 0.0978 0.0027
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 0004585
Parameter Value Uncertainty
Am1 0.947 0.031
Am2 0.041 0.018
a/Rs 14.63 0.55
Rp/Rs 0.128 0.028
ephemeris [JD] 2460212.8417 0.0075
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.303780746263483
u1 -2.1836439184092717
u2 2.8433632506823385
u3 -0.9635000361671355
duration 0.0975 0.0044
Not 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 0004596
Parameter Value Uncertainty
Am1 0.902 0.02
Am2 0.09 0.14
a/Rs 14.68 0.55
Rp/Rs 0.123 0.039
ephemeris [JD] 2460212.852 0.011
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.3038839396491269
u1 -2.184192387506484
u2 2.8440895380862257
u3 -0.9637810478486317
duration 0.0954 0.0062
Not 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 CPHB (collaborate/publish) MOBS
Light curve chart for 0004684
Parameter Value Uncertainty
Am1 1.232 0.012
Am2 -0.1618 0.0092
a/Rs 13.88 0.54
Rp/Rs 0.138 0.014
ephemeris [JD] 2460224.9131 0.0051
eccentricity 0.0
inclination [degrees] 89.3
omega [degrees] 0.0
orbital period [days] 4.02488968
u0 1.6449705124851686
u1 -2.801226189115821
u2 3.283191192535415
u3 -1.1269354669814016
duration 0.1039 0.0042
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 BIRC (collaborate/publish)