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74531 (1999 GR40)
Classification: Main-belt Asteroid          SPK-ID: 2074531
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04648844917574701 3.5073e-08  
a 3.062959053765755 2.3205e-08 au
q 2.920566837467371 1.1206e-07 au
i 11.42069561884512 5.1884e-06 deg
node 51.81336501499921 2.71e-05 deg
peri 219.5485969658987 8.1056e-05 deg
M 265.2051783560843 7.8932e-05 deg
tp 2459516.075565213523
(2021-Oct-28.57556521)
0.00043062 TDB
period 1957.98884641692
5.36
2.2251e-05
6.092e-08
d
yr
n .1838621300927187 2.0894e-09 deg/d
Q 3.205351270064138 2.4284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1263  
   data-arc span      7687 days (21.05 yr)  
   first obs. used      1999-04-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52094  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:06:27  

Additional Information
 Earth MOID = 1.91457 au 
 Jupiter MOID = 1.83226 au 
 T_jup = 3.201 
[ 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 13.7   n/a MPO337819  
diameter diameter 6.239 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.175   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74531 (1999 GR40)          Discovered 1999-Apr-12 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ 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
1906-May-02 09:35 00:04 Jupiter 1.91417811476857 1.91417679564868 1.91417943389846 3.8204857538861 3.70285197569479 2417332.899065143 3.69275014688344 238.185359221225 12.8038000360599 -73.6246095122653 3486127.48158132 T 24 CATAB v2.0f-lin.ifort 2020-May-20 14:06:47 2020-May-20 14:06
1916-Jan-09 06:58 00:03 Jupiter 1.95561261898708 1.95561121534357 1.95561402264782 3.85605443305024 3.74204596983597 2420871.790310383 3.40395814632484 331.194427473154 25.1643831004185 -78.790914012334 2427381.86146028 T 24 CATAB v2.0f-lin.ifort 2020-May-20 14:06:47 2020-May-20 14:06
1964-Dec-12 18:58 00:02 Jupiter 1.8278405001283 1.82784003616423 1.8278409640931 3.9508306937677 3.83174396679899 2438742.290020450 1.65586041246856 106.061106077598 15.0720767916111 -81.9001144363051 2928969.20801962 T 24 CATAB v2.0f-lin.ifort 2020-May-20 14:06:47 2020-May-20 14:06
2023-Jul-27 23:19 < 00:01 Jupiter 1.84026696342631 1.8402664113949 1.84026751545867 3.99496666375045 3.87804274826463 2460153.471435757 0.390837249565036 132.530700844521 19.6349377434047 -83.1359507202022 2606531.59813285 T 24 CATAB v2.0f-lin.ifort 2020-May-20 14:06:47 2020-May-20 14:06
2072-Jun-26 03:55 00:02 Jupiter 1.92556319235802 1.92556235567054 1.92556402904858 3.72672232071998 3.60675661136257 2478019.663334956 2.01660471147751 140.200080490733 12.4940677760132 -73.2665160004798 3450897.13449946 T 24 CATAB v2.0f-lin.ifort 2020-May-20 14:06:47 2020-May-20 14:06
2082-Mar-07 05:20 00:02 Jupiter 1.9432873973381 1.94328640844288 1.94328838624049 3.97507832654243 3.86387186777436 2481560.722045006 2.39622216164628 236.312596808322 24.4417284614508 -79.7020193869469 2539675.63895748 T 24 CATAB v2.0f-lin.ifort 2020-May-20 14:06:47 2020-May-20 14:06
2131-Feb-07 04:43 00:04 Jupiter 1.83233966395523 1.83233891655463 1.83234041136187 3.92383754323183 3.80420496407611 2499428.696447730 3.94234818966726 200.169212701414 15.0091628210447 -80.1025260430052 2934514.86779727 T 24 CATAB v2.0f-lin.ifort 2020-May-20 14:06:47 2020-May-20 14:06
2189-Sep-23 14:36 00:06 Jupiter 1.83392807193232 1.83392712565426 1.83392901821591 4.04024566350549 3.92426555138486 2520842.108247457 5.92465143428403 198.764653560154 22.3513497787944 -78.5015988625347 2551835.217573 T 24 CATAB v2.0f-lin.ifort 2020-May-20 14:06:47 2020-May-20 14:06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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