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 Jun 19 - Fri Local Time = 03:24:53 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2461210.64228009 ================================================================================ Geocentric Equatorial Coordinates of Asteroid Iris Right Ascension = 10h 46m 46.60s = 10.7796122h = 161.6941830° Declination = +02° 08' 36.91" = +2.143585° True Distance = 2.816872407 AU = 421.398114 Mkm = 261.844649 Mmi Visual Magnitude = +11.0 Horizontal Parallax = 3.122" = 0.052033' = 0.000867210° Light/Signal Time = 23m 25.633s ================================================================================ 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 46m 46.45s = 10.7795703h = 161.6935543° Topocentric Decl = +02° 08' 34.81" = +2.143004° Local Hour Angle = +05h 20m 17.08s = 80.071177923561° (W=Negative) Local Sidereal Time = 16h 07m 03.536s = 16.117648817h = 241.764732262° Azimuth = 264.80430° (Measured clockwise from N=0°) = 84.80430° (Measured clockwise from S=0°) Direction = W Altitude = +8.73741° (Above Local Horizon - No refractions applied) ================================================================================ Asteroid Iris ephemeris table for each day of Jun. 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 2461190 10.4369195 +03.519899 2.510836223 +10.7 xx 2461191 10.4517527 +03.468928 2.525844392 +10.7 xx 2461192 10.4667889 +03.416242 2.540845635 +10.7 xx 2461193 10.4820237 +03.361864 2.555838087 +10.8 1 2461194 10.4974530 +03.305815 2.570819910 +10.8 2 2461195 10.5130725 +03.248115 2.585789283 +10.8 3 2461196 10.5288785 +03.188785 2.600744392 +10.8 4 2461197 10.5448671 +03.127843 2.615683424 +10.8 5 2461198 10.5610347 +03.065307 2.630604559 +10.8 6 2461199 10.5773780 +03.001192 2.645505964 +10.8 7 2461200 10.5938939 +02.935513 2.660385779 +10.8 8 2461201 10.6105795 +02.868285 2.675242105 +10.9 9 2461202 10.6274322 +02.799519 2.690072994 +10.9 10 2461203 10.6444495 +02.729229 2.704876432 +10.9 11 2461204 10.6616289 +02.657428 2.719650331 +10.9 12 2461205 10.6789676 +02.584132 2.734392526 +10.9 13 2461206 10.6964625 +02.509360 2.749100793 +10.9 14 2461207 10.7141099 +02.433134 2.763772883 +10.9 15 2461208 10.7319057 +02.355479 2.778406571 +10.9 16 2461209 10.7498459 +02.276418 2.792999702 +10.9 17 2461210 10.7679267 +02.195973 2.807550240 +11.0 18 2461211 10.7861447 +02.114166 2.822056280 +11.0 19 2461212 10.8044967 +02.031014 2.836516050 +11.0 20 2461213 10.8229800 +01.946538 2.850927902 +11.0 21 2461214 10.8415920 +01.860756 2.865290287 +11.0 22 2461215 10.8603300 +01.773687 2.879601741 +11.0 23 2461216 10.8791913 +01.685349 2.893860864 +11.0 24 2461217 10.8981735 +01.595764 2.908066309 +11.0 25 2461218 10.9172738 +01.504950 2.922216771 +11.0 26 2461219 10.9364897 +01.412928 2.936310983 +11.0 27 2461220 10.9558186 +01.319716 2.950347703 +11.0 28 2461221 10.9752580 +01.225334 2.964325712 +11.1 29 2461222 10.9948054 +01.129801 2.978243801 +11.1 30 2461223 11.0144585 +01.033133 2.992100769 +11.1 xx 2461224 11.0342151 +00.935349 3.005895412 +11.1 xx 2461225 11.0540732 +00.836463 3.019626511 +11.1 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ================================================================================