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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1622432938143782 3.7593e-08  
a 3.167958095480909 1.4361e-08 au
q 2.653978139404161 1.1908e-07 au
i 2.536549992324395 3.734e-06 deg
node 51.2494394291463 8.2708e-05 deg
peri 303.1428643013124 8.3289e-05 deg
M 190.3491640032006 1.2104e-05 deg
tp 2459971.057058939948
(2023-Jan-26.55705894)
7.2803e-05 TDB
period 2059.527376717278
5.64
1.4004e-05
3.834e-08
d
yr
n .1747973851038636 1.1886e-09 deg/d
Q 3.681938051557656 1.6691e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2657  
   data-arc span      24035 days (65.80 yr)  
   first obs. used      1954-08-27  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .459  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:52:22  

Additional Information
 Earth MOID = 1.6503 au 
 Jupiter MOID = 1.75998 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 12.1   n/a MPO324333  
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. 2019-August); 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

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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 16:01 00:01 Jupiter 1.99170705197925 1.99170639003128 1.9917077139271 2.81718551295199 2.66195133652469 2436390.167378347 1.45989241397026 47.5065887099047 17.7552477904286 -80.3053365491193 2326028.09415582 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:52:37 2020-Jun-23 15:52
1969-May-12 21:23 00:01 Jupiter 1.8491698406365 1.84916931926342 1.84917036200938 2.21765715794819 2.0004729846167 2440354.391288033 1.14801489434598 63.0922213021775 7.81916466885945 -89.7154353570661 2506787.84659547 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:52:37 2020-Jun-23 15:52
1980-Mar-22 22:46 < 00:01 Jupiter 1.78378944019216 1.78378908804424 1.78378979233998 2.03240762685592 1.78353353249016 2444321.448548635 0.836163015551489 59.2375110954018 8.70791911512838 -87.0277804702931 3111899.4078609 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:52:37 2020-Jun-23 15:52
1991-Jan-24 03:59 < 00:01 Jupiter 1.82097281351537 1.820972522689 1.82097310434164 2.34740549650268 2.14009715835753 2448280.665949763 0.555539367437617 43.229213157176 3.21620759933187 -85.6441626221945 3893270.65518225 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:52:37 2020-Jun-23 15:52
2001-Nov-15 00:38 < 00:01 Jupiter 1.94706393110474 1.94706361294793 1.94706424926155 3.22528780950734 3.08746342439799 2452228.526215168 0.302378304456262 36.810264454909 10.9379570892738 -85.4223984285397 4422109.14242981 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:52:37 2020-Jun-23 15:52
2088-Jul-28 01:10 00:02 Jupiter 1.8944608592058 1.89446043659296 1.89446128181854 2.39650935448965 2.20205529346028 2483895.548525347 1.5430679590757 63.8767106230592 6.99386431123494 89.0509787966057 2925970.47377903 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:52:37 2020-Jun-23 15:52
2099-Jun-08 03:43 00:02 Jupiter 1.80202864723395 1.80202828436784 1.80202901009995 2.06200119881294 1.81982754849696 2487862.655177777 1.84323495883786 100.077642160252 9.47377290932151 -89.8477335796602 2960080.46010997 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:52:37 2020-Jun-23 15:52
2110-Apr-16 03:24 00:02 Jupiter 1.80597749860871 1.80597711929621 1.80597787792162 2.17981196598966 1.95283360516573 2491826.641722663 2.20170495680728 92.0833022995771 3.8750130974358 -86.695212736077 3522100.39534393 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:52:37 2020-Jun-23 15:52
2121-Feb-10 04:06 00:03 Jupiter 1.90767843336683 1.90767784875822 1.90767901797544 2.83760736799527 2.67656526919736 2495779.670863798 2.56416393143816 51.0825029749981 11.7220208090999 85.2106430158974 2242425.03225937 T 35 CATAB v2.0f-lin.ifort 2020-Jun-23 15:52:37 2020-Jun-23 15:52

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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