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4657 Lopez (1979 SU9)
Classification: Main-belt Asteroid          SPK-ID: 2004657
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1809427746873697 3.8001e-08  
a 3.101505276342649 1.5545e-08 au
q 2.540310305933693 1.1757e-07 au
i .2811914326029384 5.0099e-06 deg
node 358.1719274265227 0.00068758 deg
peri 38.9085927811408 0.00068768 deg
M 133.5534934517097 1.2986e-05 deg
tp 2458260.366664434778
(2018-May-21.86666443)
6.932e-05 TDB
period 1995.06575168565
5.46
1.4999e-05
4.107e-08
d
yr
n .1804451806642626 1.3566e-09 deg/d
Q 3.662700246751605 1.8357e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2200  
   data-arc span      23803 days (65.17 yr)  
   first obs. used      1955-04-16  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4849  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:11:56  

Additional Information
 Earth MOID = 1.54761 au 
 Jupiter MOID = 1.76551 au 
 T_jup = 3.196 
[ 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 12.7   n/a MPO337291  
diameter diameter 15.967 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.120   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4657 Lopez (1979 SU9)          Discovered 1979-Sep-22 by Chernykh, N. S. at Nauchnyj
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
1911-Oct-18 13:45 00:03 Jupiter 1.79649386136232 1.79649341808813 1.79649430463632 1.85037213620312 1.5750886132107 2419328.072618068 2.57769468123643 73.234765946492 25.8895223417909 72.5908145724135 2208094.09416965 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 16:12:10 2020-Jun-23 16:12
1921-Nov-12 03:09 00:02 Jupiter 1.9096499558482 1.90964920816209 1.90965070353604 2.17216504742025 1.95734612272099 2423005.631583544 2.28417786541551 130.314057734007 4.26489152458961 -89.61613685247 2688141.63507793 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 16:12:10 2020-Jun-23 16:12
1983-Feb-20 08:05 < 00:01 Jupiter 1.80029969685736 1.80029933142295 1.80030006229156 1.88847070862123 1.62029076405451 2445385.836604002 0.824288124136223 52.5875715267671 18.2793034475538 86.0996621651443 2654767.00860179 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 16:12:10 2020-Jun-23 16:12
1993-Mar-16 07:36 < 00:01 Jupiter 1.89798987307204 1.89798942202106 1.89799032412292 2.11939782472495 1.89718217651989 2449062.816903139 0.553261682976303 51.2113362486376 5.26212534107153 89.7142458222894 2683258.77590968 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 16:12:10 2020-Jun-23 16:12
2054-Jun-25 23:13 < 00:01 Jupiter 1.80137684730094 1.80137655337965 1.80137714122213 1.92597231822438 1.66401700140223 2471444.467343679 0.989974543096762 53.6166470444687 15.0109300371823 86.9291814547158 3306131.32674292 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 16:12:10 2020-Jun-23 16:12
2064-Jul-18 09:44 00:01 Jupiter 1.88936257051804 1.88936200367397 1.88936313736232 2.07665260104994 1.84820548212381 2475119.905560006 1.24194718250659 74.6288630918637 6.54313369995809 -89.6427638063871 2635532.50869891 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 16:12:10 2020-Jun-23 16:12
2125-Oct-29 19:59 00:03 Jupiter 1.79978630204983 1.79978595670112 1.79978664739834 1.95898243981306 1.70187083083638 2497502.332622343 2.76545770328663 67.074697687315 21.9589099804467 75.6347284399236 2360802.43747056 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 16:12:10 2020-Jun-23 16:12
2135-Nov-22 22:54 00:03 Jupiter 1.87739286067924 1.87739192654834 1.87739379481291 2.02732381123207 1.79100606094971 2501178.454110333 3.00163064169639 153.043219951673 8.78170108456281 -88.1020952588191 2601361.31335116 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 16:12:10 2020-Jun-23 16:12
2197-Mar-04 21:46 00:05 Jupiter 1.79964620355459 1.79964565108209 1.79964675602689 2.00038105916777 1.74934365782083 2523561.406683754 4.55283880377226 82.3523487992372 26.9973458597769 67.0876477834581 1643762.51023727 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 16:12:10 2020-Jun-23 16:12

Alternate Designations
 1979 SU9 = 1978 NU7 = 1987 GJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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