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JPL Small-Body Database Browser
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4071 Rostovdon (1981 RD2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2004071
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1607163770819105 4.4793e-08  
a 3.206969706184348 2.3349e-08 au
q 2.691557153594961 1.4845e-07 au
i 10.99239013785576 4.5969e-06 deg
node 267.4516629107505 2.8463e-05 deg
peri 126.2997034059986 3.276e-05 deg
M 252.3298500118422 1.7921e-05 deg
tp 2459627.884132291599
(2022-Feb-17.38413229)
0.00010842 TDB
period 2097.687127303311
5.74
2.2909e-05
6.272e-08
d
yr
n .1716175855370764 1.8742e-09 deg/d
Q 3.722382258773735 2.7101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      15563 days (42.61 yr)  
   first obs. used      1976-12-18  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39794  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:03:29  

Additional Information
 Earth MOID = 1.71677 au 
 Jupiter MOID = 1.76996 au 
 T_jup = 3.144 
[ 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 12.0   n/a MPO473822  
diameter diameter 25.982 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.050   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4071 Rostovdon (1981 RD2)          Discovered 1981-Sep-07 by Karachkina, L. G. at Nauchnyj
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
2031-Dec-19 06:57 < 00:01 Jupiter 1.85381524432622 1.85381475954902 1.85381572910342 3.97807586174208 3.86151163419669 2463219.789924151 0.642712986315043 94.1260671934616 22.2860966023344 87.6343906666726 3339379.97007826 T 25 CATAB v2.0f-lin.ifort 2020-Feb-22 17:03:40 2020-Feb-22 17:03
2043-Feb-27 15:36 00:01 Jupiter 1.78022518008754 1.78022477164944 1.78022558852595 3.70649628684786 3.57582499768427 2467308.149666023 1.03100646837574 118.252490276805 16.7967151082429 85.8737021449094 3248063.44412933 T 25 CATAB v2.0f-lin.ifort 2020-Feb-22 17:03:40 2020-Feb-22 17:03
2054-May-22 10:51 00:02 Jupiter 1.79977736702814 1.79977676136357 1.79977797269556 3.36821734317506 3.22546671404029 2471409.951843171 1.52741005258084 151.654428367804 16.255554842086 79.4514535087009 2978899.30014393 T 25 CATAB v2.0f-lin.ifort 2020-Feb-22 17:03:40 2020-Feb-22 17:03
2065-Aug-06 10:11 00:02 Jupiter 1.89819304522621 1.89819203480825 1.89819405564752 2.93373634914296 2.77747323498496 2475503.924332798 2.19869395564677 155.716795858127 22.718490458518 68.7691566137052 2603336.72118446 T 25 CATAB v2.0f-lin.ifort 2020-Feb-22 17:03:40 2020-Feb-22 17:03
2198-May-30 00:27 00:06 Jupiter 1.87629540996806 1.87629280902238 1.87629801091373 3.83365042074328 3.71402862703337 2524012.518412688 6.49060036584759 131.844815739776 100.742560190364 -23.0363921442029 1654964.58441192 T 25 CATAB v2.0f-lin.ifort 2020-Feb-22 17:03:40 2020-Feb-22 17:03

Alternate Designations
 1981 RD2 = 1976 YL = 1987 SF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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