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4941 Yahagi (1986 UA)
Classification: Main-belt Asteroid          SPK-ID: 2004941
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1740039765711902 3.7407e-08  
a 3.18557317418317 1.5233e-08 au
q 2.63127077421679 1.1956e-07 au
i 1.874911515275254 3.2183e-06 deg
node 129.3231429337525 0.00013404 deg
peri 266.3614294383926 0.00013455 deg
M 4.725339172439318 9.5028e-06 deg
tp 2459173.240976702475
(2020-Nov-19.74097670)
5.4887e-05 TDB
period 2076.728892678221
5.69
1.4896e-05
4.078e-08
d
yr
n .1733495408424408 1.2434e-09 deg/d
Q 3.739875574149551 1.7883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2618  
   data-arc span      18723 days (51.26 yr)  
   first obs. used      1969-10-15  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4708  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:21:20  

Additional Information
 Earth MOID = 1.63795 au 
 Jupiter MOID = 1.69168 au 
 T_jup = 3.174 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.64   n/a E2021B10  
diameter diameter 17.560 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.690 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.059   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4941 Yahagi           Discovered 1986 Oct. 25 by K. Suzuki and T. Urata at Toyota.
The Yahagi River flows through Aichi, hometown of the discoverers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1910-Mar-23 02:09 00:02 Jupiter 1.75919299613702 1.75919236994289 1.75919362233176 1.73293807754174 1.42832323023144 2418753.589619793 1.78622728091637 124.723183703866 29.5145694120139 -71.204718914288 2377175.88344462 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
1921-Jan-07 23:49 00:02 Jupiter 1.95380710907996 1.9538064485225 1.95380776963776 2.57715981801848 2.40306148053266 2422697.492158516 1.58134418862786 73.9641737999318 8.681284264022 84.026733174622 2612375.31521628 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
1996-Aug-31 07:57 < 00:01 Jupiter 1.97253875670078 1.97253832997857 1.97253918342288 3.17956354713999 3.04151438867424 2450326.831089574 0.458092208742028 41.9494901969969 14.8291584116304 88.5158073108634 3375258.00923517 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
2007-Jun-04 08:53 < 00:01 Jupiter 1.76525882180617 1.76525849701457 1.76525914659766 1.96492351387991 1.70331038161007 2454255.870181378 0.29866427119192 42.1861018361865 11.1248292498627 -87.406924309148 3145237.62927655 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
2018-Mar-24 12:35 < 00:01 Jupiter 1.67956448392396 1.67956413667353 1.67956483117393 1.50275809447209 1.11788205184831 2458202.024275857 0.295859923545143 90.6259090583588 67.236467889554 -40.4785796310775 2440438.84283038 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
2029-Jan-18 10:32 < 00:01 Jupiter 1.7586305686046 1.75863007908734 1.75863105812157 1.725066565634 1.41865413643885 2462154.938953361 0.503673941665068 73.8283914617029 30.5749985852947 -68.8719189585412 2384733.13156532 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
2039-Nov-05 12:04 < 00:01 Jupiter 1.95990361162713 1.95990299583281 1.95990422742145 2.57563042722144 2.40198270210013 2466098.002850107 0.750225951577639 49.7037784145492 9.8530946390171 79.4355189167109 2619081.27469333 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
2115-Jun-27 23:45 00:02 Jupiter 1.96092524918547 1.96092428542247 1.96092621294847 3.18630946290105 3.04773147142649 2493725.489643733 1.99368538237535 64.0205124969671 20.7892180242818 69.4512597200403 1755266.06996118 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
2126-Mar-28 09:13 00:02 Jupiter 1.75117791131329 1.75117715316813 1.75117866945745 1.94744422072953 1.68082253458748 2497651.884132363 2.18032383639814 45.489042060108 35.2313542568351 -76.6755625315469 1193104.48731452 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
2137-Jan-13 22:29 00:02 Jupiter 1.67116463534057 1.67116429101518 1.67116497966547 1.4879917687207 1.09564055045649 2501596.436461317 2.32924478978477 105.426029113317 90.2194843791905 52.4587263362192 2247936.54795924 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
2147-Nov-09 11:42 00:03 Jupiter 1.76035500766652 1.76035407910814 1.76035593622731 1.72768804629294 1.42217246140596 2505547.987666718 2.62344489902796 168.265043122109 30.8369782293387 -74.5325133964661 2372584.60094055 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21
2158-Aug-25 13:05 00:03 Jupiter 1.97075735724663 1.97075595525709 1.97075875923852 2.59879231052956 2.42778306343322 2509490.044902858 2.94386412493567 143.850448035866 9.74179507495411 78.2600260384709 2681637.22480452 T 37 CATAB v2.0f-lin.ifort 2021-Feb-24 01:21:26 2021-Feb-24 01:21

Alternate Designations
 1986 UA = 1969 TR5 = 1975 VW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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