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 = 2025 Nov 09 - Sun Local Time = 00:53:44 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2460988.53731481 ================================================================================ Geocentric Equatorial Coordinates of Asteroid Iris Right Ascension = 10h 20m 07.50s = 10.3354170h = 155.0312550° Declination = +06° 02' 56.83" = +6.049120° True Distance = 2.297559634 AU = 343.710029 Mkm = 213.571511 Mmi Visual Magnitude = +10.2 Horizontal Parallax = 3.828" = 0.063793' = 0.001063224° Light/Signal Time = 19m 06.493s ================================================================================ 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 20m 07.53s = 10.3354261h = 155.0313919° Topocentric Decl = +06° 02' 53.97" = +6.048325° Local Hour Angle = +12h 40m 06.58s = 190.0274326975° (W=Negative) Local Sidereal Time = 23h 00m 14.118s = 23.003921641h = 345.058824609° Azimuth = 13.13341° (Measured clockwise from N=0°) = 193.13341° (Measured clockwise from S=0°) Direction = NNE Altitude = -40.35551° (Invisible - Below Local Horizon) ================================================================================ Asteroid Iris ephemeris table for each day of Nov. 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 2460978 10.0932035 +07.847540 2.391246637 +10.2 xx 2460979 10.1172978 +07.674614 2.382637532 +10.2 xx 2460980 10.1411642 +07.502092 2.373966971 +10.2 xx 2460981 10.1648009 +07.329999 2.365235894 +10.2 1 2460982 10.1882066 +07.158359 2.356445192 +10.2 2 2460983 10.2113798 +06.987193 2.347595692 +10.2 3 2460984 10.2343194 +06.816523 2.338688139 +10.2 4 2460985 10.2570241 +06.646374 2.329723197 +10.2 5 2460986 10.2794918 +06.476772 2.320701464 +10.2 6 2460987 10.3017200 +06.307750 2.311623517 +10.2 7 2460988 10.3237055 +06.139342 2.302489962 +10.2 8 2460989 10.3454444 +05.971583 2.293301479 +10.2 9 2460990 10.3669331 +05.804510 2.284058861 +10.2 10 2460991 10.3881677 +05.638156 2.274763032 +10.2 11 2460992 10.4091448 +05.472557 2.265415046 +10.2 12 2460993 10.4298609 +05.307744 2.256016082 +10.2 13 2460994 10.4503128 +05.143752 2.246567432 +10.2 14 2460995 10.4704972 +04.980613 2.237070492 +10.2 15 2460996 10.4904107 +04.818363 2.227526748 +10.2 16 2460997 10.5100501 +04.657036 2.217937772 +10.2 17 2460998 10.5294117 +04.496668 2.208305216 +10.2 18 2460999 10.5484920 +04.337294 2.198630802 +10.2 19 2461000 10.5672874 +04.178951 2.188916318 +10.1 20 2461001 10.5857940 +04.021677 2.179163615 +10.1 21 2461002 10.6040079 +03.865508 2.169374592 +10.1 22 2461003 10.6219251 +03.710481 2.159551199 +10.1 23 2461004 10.6395417 +03.556633 2.149695422 +10.1 24 2461005 10.6568536 +03.404000 2.139809279 +10.1 25 2461006 10.6738571 +03.252616 2.129894814 +10.1 26 2461007 10.6905482 +03.102517 2.119954086 +10.1 27 2461008 10.7069233 +02.953734 2.109989156 +10.1 28 2461009 10.7229789 +02.806298 2.100002078 +10.1 29 2461010 10.7387117 +02.660241 2.089994882 +10.1 30 2461011 10.7541186 +02.515589 2.079969551 +10.1 xx 2461012 10.7691964 +02.372374 2.069928016 +10.1 xx 2461013 10.7839417 +02.230628 2.059872146 +10.0 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ================================================================================