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2986 Mrinalini (2525 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2002986
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1626921992610046 3.2825e-08  
a 3.166748738675169 1.3369e-08 au
q 2.651543421873093 1.0616e-07 au
i 2.536978366844531 3.6843e-06 deg
node 51.24441572616259 7.0212e-05 deg
peri 303.2027808382385 7.0916e-05 deg
M 259.5528002624117 1.2088e-05 deg
tp 2459970.820303032070
(2023-Jan-26.32030303)
7.1035e-05 TDB
period 2058.348163330385
5.64
1.3035e-05
3.569e-08
d
yr
n .1748975253134649 1.1075e-09 deg/d
Q 3.681954055477244 1.5544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3084  
   data-arc span      24454 days (66.95 yr)  
   first obs. used      1954-08-27  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44087  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 09:12:57  

Additional Information
 Earth MOID = 1.64705 au 
 Jupiter MOID = 1.76116 au 
 T_jup = 3.181 
[ 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 12.18   n/a MPCxxxxx  
diameter diameter 19.210 km 0.295 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 15.9 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:
[Galad, A. (2009) Minor Planet Bull. 36, 183-186.]
geometric albedo albedo 0.083   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2986 Mrinalini (2525 P-L)          Discovered 1960-Sep-24 by PLS at Palomar
These planets have all been discovered as a result of the Palomar survey of faint minor planets and subsequently identified with planets observed at other oppositions. In Sept. and Oct. 1960, T. Gehrels exposed 130 plates with the 122 cm Schmidt camera at Palomar. In the following years C. J. van Houten and I. van Houten-Groeneveld measured these plates astrometrically and photometrically at Leiden. P. Herget, Cincinnati, computed the orbits of the planets found on the NORC computer, Dahlgren, Virginia, USA.
Note: "planet" implies "minor planet"
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1958-Jul-05 16:02 00:01 Jupiter 1.99170734974258 1.99170674549035 1.99170795399469 2.81718686195624 2.66195278896433 2436390.167804813 1.34231823522005 45.792323436265 16.5717707500768 -81.436143764505 2568936.0925552 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 09:13:29 2021-Aug-25 09:13
1969-May-12 21:24 00:01 Jupiter 1.84917011575723 1.84916966664358 1.84917056487078 2.21765802968098 2.00047398632209 2440354.391622435 1.05473580633046 62.4640042115047 7.10696100163546 -89.8330142020131 2894464.00529366 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 09:13:29 2021-Aug-25 09:13
1980-Mar-22 22:46 < 00:01 Jupiter 1.78378962165992 1.78378932491512 1.78378991840461 2.0324081104868 1.78353411216241 2444321.448783528 0.771244565664508 58.5663509083555 7.73838163308134 -86.5678969759693 3613921.180261 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 09:13:29 2021-Aug-25 09:13
1991-Jan-24 03:59 < 00:01 Jupiter 1.82097287685432 1.82097259829184 1.8209731554168 2.3474057812998 2.14009747950333 2448280.666090171 0.516223106633188 41.7917310067034 3.10514652350097 -85.6804967858049 4054201.14908685 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 09:13:29 2021-Aug-25 09:13
2001-Nov-15 00:38 < 00:01 Jupiter 1.94706387996526 1.94706356365069 1.94706419627983 3.22528776407365 3.08746337401378 2452228.526276873 0.284141337166281 33.0782100679854 10.8992579840124 -85.4589413454253 4431870.93514234 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 09:13:29 2021-Aug-25 09:13
2088-Jul-28 01:09 00:01 Jupiter 1.8944607973499 1.894460375966 1.89446121873369 2.39650895919458 2.20205485775061 2483895.547922380 1.40815530156492 58.655073139729 6.78731402819506 88.6617494335343 2987075.20015482 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 09:13:29 2021-Aug-25 09:13
2099-Jun-08 03:42 00:02 Jupiter 1.80202874229201 1.80202840160447 1.80202908297944 2.06200147575466 1.81982787734436 2487862.654499642 1.68257021261265 88.9797832479732 8.18558238502666 89.4047910402718 3254447.04821431 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 09:13:29 2021-Aug-25 09:13
2110-Apr-16 03:23 00:02 Jupiter 1.80597775873708 1.80597746108553 1.80597805638882 2.17981325842267 1.95283508373856 2491826.640940315 2.00847202219192 83.938738515464 3.40810972860427 -86.8349918318061 4148362.78841933 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 09:13:29 2021-Aug-25 09:13
2121-Feb-10 04:05 00:02 Jupiter 1.90767876125359 1.90767825065817 1.90767927184889 2.8376098472521 2.67656792705316 2495779.669980810 2.34213429125144 47.7682699845572 10.7177744867812 86.213810294794 2537231.62808451 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 09:13:29 2021-Aug-25 09:13

Alternate Designations
 2525 P-L = 1977 QG1 = 1980 DB4 = 1986 ET3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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