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 = 2018 Sep 20 - Thu Local Time = 22:11:54 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2458382.42493056 ================================================================================ Geocentric Equatorial Coordinates of Asteroid Iris Right Ascension = 10h 42m 20.50s = 10.7056944h = 160.5854160° Declination = +04° 04' 21.02" = +4.072507° True Distance = 3.372749736 AU = 504.556179 Mkm = 313.516674 Mmi Visual Magnitude = +10.6 Horizontal Parallax = 2.607" = 0.043457' = 0.000724281° Light/Signal Time = 28m 03.018s ================================================================================ 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 42m 20.37s = 10.7056590h = 160.5848843° Topocentric Decl = +04° 04' 19.26" = +4.072016° Local Hour Angle = +06h 21m 12.80s = 95.303315731721° (W=Negative) Local Sidereal Time = 17h 03m 33.168s = 17.059213334h = 255.888200010° Azimuth = 276.58914° (Measured clockwise from N=0°) = 96.58914° (Measured clockwise from S=0°) Direction = W Altitude = -1.11703° (Invisible - Below Local Horizon) ================================================================================ Asteroid Iris ephemeris table for each day of Sep. 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 2458360 10.0667346 +08.026238 3.378039901 +10.3 xx 2458361 10.0960689 +07.853692 3.379058626 +10.4 xx 2458362 10.1253254 +07.680691 3.379964056 +10.4 xx 2458363 10.1545045 +07.507246 3.380755536 +10.4 1 2458364 10.1836067 +07.333373 3.381432373 +10.4 2 2458365 10.2126321 +07.159084 3.381993843 +10.4 3 2458366 10.2415806 +06.984398 3.382439203 +10.4 4 2458367 10.2704517 +06.809331 3.382767716 +10.4 5 2458368 10.2992448 +06.633901 3.382978670 +10.5 6 2458369 10.3279591 +06.458125 3.383071419 +10.5 7 2458370 10.3565939 +06.282020 3.383045408 +10.5 8 2458371 10.3851487 +06.105601 3.382900207 +10.5 9 2458372 10.4136234 +05.928883 3.382635514 +10.5 10 2458373 10.4420179 +05.751878 3.382251156 +10.5 11 2458374 10.4703324 +05.574601 3.381747059 +10.5 12 2458375 10.4985670 +05.397068 3.381123222 +10.5 13 2458376 10.5267216 +05.219295 3.380379681 +10.6 14 2458377 10.5547961 +05.041299 3.379516487 +10.6 15 2458378 10.5827903 +04.863097 3.378533685 +10.6 16 2458379 10.6107039 +04.684705 3.377431311 +10.6 17 2458380 10.6385370 +04.506141 3.376209379 +10.6 18 2458381 10.6662892 +04.327418 3.374867886 +10.6 19 2458382 10.6939605 +04.148552 3.373406808 +10.6 20 2458383 10.7215509 +03.969558 3.371826097 +10.6 21 2458384 10.7490605 +03.790449 3.370125681 +10.6 22 2458385 10.7764895 +03.611238 3.368305455 +10.6 23 2458386 10.8038381 +03.431936 3.366365278 +10.7 24 2458387 10.8311067 +03.252556 3.364304966 +10.7 25 2458388 10.8582957 +03.073107 3.362124283 +10.7 26 2458389 10.8854056 +02.893602 3.359822944 +10.7 27 2458390 10.9124367 +02.714050 3.357400611 +10.7 28 2458391 10.9393891 +02.534466 3.354856899 +10.7 29 2458392 10.9662628 +02.354860 3.352191385 +10.7 30 2458393 10.9930574 +02.175250 3.349403622 +10.7 xx 2458394 11.0197724 +01.995649 3.346493157 +10.7 xx 2458395 11.0464069 +01.816076 3.343459552 +10.7 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ================================================================================
Programmed in PHP by Jay Tanner - 2018 - v4.0
Revised 2015 Jun 12