Asteroid Iris Ephemeris Calculator
Based the U.S. Naval Observatory AE98 Model
PHP Program By Jay Tanner
Date: (1800 to 2099) Y m d
Local Time (00h to 24h) H:M:S
Local Time Zone Offset ±H:M
Undefined1
UT
Apply ΔT
+00:00:00
Daylight / Summer Time
Undefined3
Longitude ±Deg.d M S
(Neg=W)
Latitude ±Deg.d M S
(Neg=S)
Sea Level Elevation
(± meters)
This program uses a cookie to store and remember the interface settings between calls.
Asteroid Iris Ephemeris Statistics Referred to True Ecliptic and Equinox of the Date Based On the U.S.N.O. Asteroid Ephemeris, 1998 Local Date = 2026 Feb 05 - Thu Local Time = 02:37:12 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2461076.60916667 ================================================================================ Geocentric Equatorial Coordinates of Asteroid Iris Right Ascension = 10h 50m 52.30s = 10.8478606h = 162.7179090° Declination = -01° 48' 23.34" = -1.806482° True Distance = 1.529976454 AU = 228.881220 Mkm = 142.220196 Mmi Visual Magnitude = +9.1 Horizontal Parallax = 5.748" = 0.095798' = 0.001596639° Light/Signal Time = 12m 43.466s ================================================================================ Local Topocentric Coordinates of Asteroid Iris For Geographic Location: Longitude = -76.833611111° = -05h 07m 20.1s (W=Negative) Latitude = +42.752194444° Elevation = 0 m Topocentric RA = 10h 50m 52.55s = 10.8479316h = 162.7189736° Topocentric Decl = -01° 48' 27.27" = -1.807575° Local Hour Angle = -04h 19m 56.31s = -64.984633335801° (W=Negative) Local Sidereal Time = 06h 30m 56.242s = 6.515622684h = 97.734340264° Azimuth = 108.89797° (Measured clockwise from N=0°) = 288.89797° (Measured clockwise from S=0°) Direction = ESE Altitude = +16.79444° (Above Local Horizon - No refractions applied) ================================================================================ Asteroid Iris ephemeris table for each day of Feb. 2014 at 12:00 TT. Computed according to USNO AE98 ephemeris model - No Delta T applied. There are three extra (xx) days at each end of the table. JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day 2461070 10.9277862 -01.985128 1.560405920 +9.2 xx 2461071 10.9167990 -01.968039 1.555193658 +9.2 xx 2461072 10.9054013 -01.947378 1.550191956 +9.2 xx 2461073 10.8936030 -01.923159 1.545404887 +9.2 1 2461074 10.8814145 -01.895399 1.540836529 +9.1 2 2461075 10.8688472 -01.864122 1.536490985 +9.1 3 2461076 10.8559135 -01.829356 1.532372381 +9.1 4 2461077 10.8426263 -01.791135 1.528484845 +9.1 5 2461078 10.8289995 -01.749497 1.524832486 +9.1 6 2461079 10.8150476 -01.704484 1.521419368 +9.0 7 2461080 10.8007858 -01.656144 1.518249480 +9.0 8 2461081 10.7862297 -01.604529 1.515326712 +9.0 9 2461082 10.7713957 -01.549698 1.512654841 +9.0 10 2461083 10.7563008 -01.491715 1.510237512 +9.0 11 2461084 10.7409627 -01.430648 1.508078221 +8.9 12 2461085 10.7253994 -01.366574 1.506180310 +8.9 13 2461086 10.7096298 -01.299573 1.504546942 +8.9 14 2461087 10.6936731 -01.229733 1.503181091 +8.9 15 2461088 10.6775492 -01.157150 1.502085518 +8.9 16 2461089 10.6612788 -01.081923 1.501262748 +8.8 17 2461090 10.6448829 -01.004163 1.500715041 +8.8 18 2461091 10.6283833 -00.923984 1.500444373 +8.8 19 2461092 10.6118020 -00.841507 1.500452412 +8.8 20 2461093 10.5951614 -00.756856 1.500740510 +8.8 21 2461094 10.5784837 -00.670158 1.501309701 +8.8 22 2461095 10.5617909 -00.581540 1.502160711 +8.8 23 2461096 10.5451044 -00.491130 1.503293979 +8.7 24 2461097 10.5284451 -00.399053 1.504709683 +8.7 25 2461098 10.5118333 -00.305436 1.506407768 +8.7 26 2461099 10.4952888 -00.210404 1.508387983 +8.7 27 2461100 10.4788310 -00.114082 1.510649911 +8.7 28 2461101 10.4624791 -00.016598 1.513192993 +8.7 xx 2461102 10.4462522 +00.081920 1.516016559 +8.7 xx 2461103 10.4301692 +00.181344 1.519119832 +8.8 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ================================================================================