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120857 (1998 QX43)
Classification: Main-belt Asteroid          SPK-ID: 2120857
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2513908677751262 5.8859e-08  
a 2.98857938934679 2.136e-08 au
q 2.237277823244044 1.7024e-07 au
i 2.80478618472455 5.7699e-06 deg
node 91.13371248706247 0.00012102 deg
peri 258.3289316547603 0.00012177 deg
M 74.81923498540017 1.4443e-05 deg
tp 2458608.301087656252
(2019-May-04.80108766)
7.4456e-05 TDB
period 1887.103075449792
5.17
2.0232e-05
5.539e-08
d
yr
n .1907685937686227 2.0452e-09 deg/d
Q 3.739880955449536 2.673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      395  
   data-arc span      9618 days (26.33 yr)  
   first obs. used      1993-10-15  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57316  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:14  

Additional Information
 Earth MOID = 1.23321 au 
 Jupiter MOID = 1.69766 au 
 T_jup = 3.206 
[ 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 15.4   n/a MPO459569  
diameter diameter 4.162 km 1.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120857 (1998 QX43)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ 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
1907-Sep-05 08:24 00:04 Jupiter 1.88452021367796 1.88451835718439 1.88452207016628 1.86138826131557 1.60182390649345 2417823.849956897 3.72101714694633 136.883928896808 55.8792975041214 -36.8462145692247 635901.972622685 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 17:54:15 2020-Nov-12 17:54
1944-Mar-25 00:16 00:02 Jupiter 1.69725982932195 1.69725923433936 1.69726042430491 0.942218783263187 n/a 2431174.510962277 2.33522631489192 101.565297940031 27.1363983415337 -82.9601117443295 9288547.94281474 F 16 CATAB v2.0f-lin.ifort 2020-Nov-12 17:54:15 2020-Nov-12 17:54
1980-Sep-27 07:29 00:01 Jupiter 1.68927266767833 1.68927196217009 1.68927337318693 0.788346172712874 n/a 2444509.811721267 1.10432815493971 81.1162691522499 29.8038473828234 75.6540492398647 8248549.34139136 F 16 CATAB v2.0f-lin.ifort 2020-Nov-12 17:54:15 2020-Nov-12 17:54
2017-Apr-11 13:54 < 00:01 Jupiter 1.87162024444428 1.87161958511467 1.87162090377326 1.37774929064691 0.996529431944551 2457855.078978588 0.325222404858443 273.289764375357 205.345985191351 -45.5664520715856 1201749.75269085 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 17:54:15 2020-Nov-12 17:54
2062-Jul-08 13:41 00:02 Jupiter 1.77341306476742 1.77341214411292 1.7734139854201 1.26522983341114 0.803468063339623 2474379.070444781 1.5807782298424 726.262246901255 158.607224655135 -16.1608230803953 1104487.59467664 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 17:54:15 2020-Nov-12 17:54
2099-Jan-17 00:17 00:03 Jupiter 1.67164998398722 1.67164941304871 1.67165055492627 0.767467622375861 n/a 2487720.512068039 2.67854220503617 128.088761120231 26.3581481629329 -85.0748518766728 9451324.34703954 F 16 CATAB v2.0f-lin.ifort 2020-Nov-12 17:54:15 2020-Nov-12 17:54
2135-Jul-25 01:39 00:04 Jupiter 1.76796512512565 1.76796371265921 1.76796653758405 1.01505129633808 0.268588842995443 2501057.568897187 4.00769994190438 22695.0713508658 1346.65574239773 -1.74432120252155 594454.887469583 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 17:54:15 2020-Nov-12 17:54
2180-Oct-18 11:09 00:06 Jupiter 1.88354710747822 1.8835442272425 1.88354998770216 1.77721735304746 1.50303382238817 2517579.964411413 5.60946174909544 299.531549400918 60.7731152792113 -36.4466649418795 680812.567252238 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 17:54:15 2020-Nov-12 17:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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