Asteroid Iris Ephemeris Calculator
Based on the U.S. Naval Observatory Asteroid Ephemeris, 1998
Date: (1800 to 2099) Y m d
Local Time (00h to 24h) H:M:S
Local Time Zone Offset ±H:M
Undefined1
Std. Time = 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 = 2019 Mar 21 - Thu Local Time = 07:43:39 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2458563.82197917 ================================================================================ Geocentric Equatorial Coordinates of Asteroid Iris Right Ascension = 12h 58m 03.60s = 12.9676678h = 194.5150170° Declination = -14° 36' 28.77" = -14.607992° True Distance = 1.846859426 AU = 276.286238 Mkm = 171.676309 Mmi Visual Magnitude = +9.6 Horizontal Parallax = 4.762" = 0.079361' = 0.001322688° Light/Signal Time = 15m 21.592s ================================================================================ 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 = 12h 58m 03.51s = 12.9676415h = 194.5146225° Topocentric Decl = -14° 36' 32.70" = -14.609082° Local Hour Angle = +01h 32m 25.03s = 23.104276946847° (W=Negative) Local Sidereal Time = 14h 30m 28.536s = 14.507926632h = 217.618899484° Azimuth = 205.68856° (Measured clockwise from N=0°) = 25.68856° (Measured clockwise from S=0°) Direction = SSW Altitude = +28.83886° (Above Local Horizon - No refractions applied) ================================================================================ Asteroid Iris ephemeris table for each day of Mar. 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 2458541 13.2245081 -15.692844 1.985494152 +10.0 xx 2458542 13.2172224 -15.679219 1.977063264 +10.0 xx 2458543 13.2095198 -15.662477 1.968815999 +10.0 xx 2458544 13.2014046 -15.642601 1.960757387 +10.0 1 2458545 13.1928820 -15.619576 1.952892437 +10.0 2 2458546 13.1839575 -15.593389 1.945226120 +10.0 3 2458547 13.1746378 -15.564033 1.937763357 +9.9 4 2458548 13.1649299 -15.531504 1.930509008 +9.9 5 2458549 13.1548417 -15.495802 1.923467850 +9.9 6 2458550 13.1443820 -15.456933 1.916644568 +9.9 7 2458551 13.1335601 -15.414906 1.910043739 +9.9 8 2458552 13.1223859 -15.369735 1.903669812 +9.8 9 2458553 13.1108701 -15.321441 1.897527100 +9.8 10 2458554 13.0990239 -15.270047 1.891619759 +9.8 11 2458555 13.0868586 -15.215581 1.885951782 +9.8 12 2458556 13.0743864 -15.158075 1.880526983 +9.8 13 2458557 13.0616195 -15.097566 1.875348991 +9.7 14 2458558 13.0485704 -15.034091 1.870421243 +9.7 15 2458559 13.0352516 -14.967692 1.865746984 +9.7 16 2458560 13.0216762 -14.898413 1.861329277 +9.7 17 2458561 13.0078574 -14.826302 1.857171024 +9.7 18 2458562 12.9938087 -14.751410 1.853274999 +9.6 19 2458563 12.9795442 -14.673791 1.849643889 +9.6 20 2458564 12.9650786 -14.593508 1.846280336 +9.6 21 2458565 12.9504266 -14.510622 1.843186957 +9.6 22 2458566 12.9356035 -14.425204 1.840366348 +9.6 23 2458567 12.9206246 -14.337323 1.837821065 +9.5 24 2458568 12.9055052 -14.247053 1.835553591 +9.5 25 2458569 12.8902612 -14.154470 1.833566295 +9.5 26 2458570 12.8749086 -14.059656 1.831861401 +9.5 27 2458571 12.8594638 -13.962696 1.830440959 +9.5 28 2458572 12.8439435 -13.863680 1.829306828 +9.4 29 2458573 12.8283649 -13.762705 1.828460657 +9.4 30 2458574 12.8127452 -13.659868 1.827903881 +9.4 31 2458575 12.7971021 -13.555275 1.827637708 +9.4 xx 2458576 12.7814533 -13.449035 1.827663117 +9.4 xx 2458577 12.7658166 -13.341260 1.827980841 +9.4 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ================================================================================
Programmed in PHP by Jay Tanner - 2019 - v4.0
Revised 2015 Jun 12