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 = 2023 May 28 - Sun Local Time = 16:46:54 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2460093.19923611 ================================================================================ Geocentric Equatorial Coordinates of Asteroid Iris Right Ascension = 14h 00m 31.75s = 14.0088205h = 210.1323075° Declination = -17° 08' 53.33" = -17.148147° True Distance = 2.035662531 AU = 304.530780 Mkm = 189.226654 Mmi Visual Magnitude = +10.1 Horizontal Parallax = 4.320" = 0.072001' = 0.001200012° Light/Signal Time = 16m 55.805s ================================================================================ 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 = 14h 00m 31.87s = 14.0088520h = 210.1327794° Topocentric Decl = -17° 08' 55.31" = -17.148698° Local Hour Angle = -09h 57m 05.57s = -149.27318884299° (W=Negative) Local Sidereal Time = 04h 03m 26.302s = 4.057306037h = 60.859590558° Azimuth = 55.06174° (Measured clockwise from N=0°) = 235.06174° (Measured clockwise from S=0°) Direction = NE Altitude = -53.44674° (Invisible - Below Local Horizon) ================================================================================ Asteroid Iris ephemeris table for each day of May. 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 2460063 14.4253439 -20.148523 1.927849811 +9.5 xx 2460064 14.4092336 -20.052909 1.927335280 +9.5 xx 2460065 14.3931428 -19.956135 1.927112047 +9.5 xx 2460066 14.3770883 -19.858291 1.927179814 +9.5 1 2460067 14.3610869 -19.759469 1.927538110 +9.5 2 2460068 14.3451548 -19.659765 1.928186299 +9.5 3 2460069 14.3293084 -19.559273 1.929123602 +9.5 4 2460070 14.3135635 -19.458092 1.930349111 +9.5 5 2460071 14.2979354 -19.356319 1.931861815 +9.6 6 2460072 14.2824391 -19.254052 1.933660619 +9.6 7 2460073 14.2670887 -19.151389 1.935744350 +9.6 8 2460074 14.2518982 -19.048425 1.938111764 +9.6 9 2460075 14.2368811 -18.945255 1.940761531 +9.7 10 2460076 14.2220509 -18.841976 1.943692215 +9.7 11 2460077 14.2074210 -18.738683 1.946902246 +9.7 12 2460078 14.1930051 -18.635475 1.950389892 +9.7 13 2460079 14.1788168 -18.532454 1.954153228 +9.8 14 2460080 14.1648700 -18.429723 1.958190115 +9.8 15 2460081 14.1511779 -18.327387 1.962498179 +9.8 16 2460082 14.1377535 -18.225553 1.967074802 +9.8 17 2460083 14.1246091 -18.124324 1.971917120 +9.8 18 2460084 14.1117561 -18.023802 1.977022032 +9.9 19 2460085 14.0992052 -17.924087 1.982386219 +9.9 20 2460086 14.0869663 -17.825272 1.988006161 +9.9 21 2460087 14.0750488 -17.727448 1.993878169 +9.9 22 2460088 14.0634612 -17.630702 1.999998407 +10.0 23 2460089 14.0522114 -17.535117 2.006362916 +10.0 24 2460090 14.0413071 -17.440773 2.012967637 +10.0 25 2460091 14.0307553 -17.347745 2.019808424 +10.0 26 2460092 14.0205624 -17.256109 2.026881057 +10.0 27 2460093 14.0107345 -17.165933 2.034181259 +10.1 28 2460094 14.0012770 -17.077286 2.041704705 +10.1 29 2460095 13.9921951 -16.990230 2.049447038 +10.1 30 2460096 13.9834933 -16.904828 2.057403885 +10.1 31 2460097 13.9751755 -16.821138 2.065570879 +10.1 xx 2460098 13.9672452 -16.739212 2.073943682 +10.2 xx 2460099 13.9597051 -16.659103 2.082518012 +10.2 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ================================================================================