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101967 (1999 RQ43)
Classification: Mars-crossing Asteroid          SPK-ID: 2101967
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3005332277400361 3.6177e-08  
a 2.139943619722296 9.9823e-09 au
q 1.496819456505458 7.5088e-08 au
i 4.195372093637567 4.3533e-06 deg
node 184.5867391223575 5.0041e-05 deg
peri 134.2338203602461 5.1866e-05 deg
M 245.4437218975232 2.1478e-05 deg
tp 2459364.346597652789
(2021-May-29.84659765)
7.0645e-05 TDB
period 1143.409835974516
3.13
8.0006e-06
2.19e-08
d
yr
n .3148477375946097 2.203e-09 deg/d
Q 2.783067782939134 1.2982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      8128 days (22.25 yr)  
   first obs. used      1998-02-18  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54442  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:28  

Additional Information
 Earth MOID = .488153 au 
 Jupiter MOID = 2.55427 au 
 T_jup = 3.652 
[ 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 15.8   n/a MPO309891  
rotation period rot_per 52.184 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

101967 (1999 RQ43)          Discovered 1999-Sep-13 by Juels, C. W. at Fountain Hills
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1930-Aug-13 18:02 < 00:01 Earth 0.488679866008418 0.488679445243045 0.488680286784097 2.22823062639695 2.2257823162551 2426202.251108835 0.832850199932322 130.994457948612 10.384609777942 -82.155509796087 988451.554621382 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:30 2020-Nov-12 19:57
2002-Aug-07 16:00 < 00:01 Earth 0.487826179644348 0.48782595507585 0.487826404212929 2.11385588263227 2.11127042424271 2452494.166346921 0.0498920631554424 28.5783835369512 10.3727395368538 -81.2644365721995 1283979.47684745 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:30 2020-Nov-12 19:57
2049-Aug-20 05:46 < 00:01 Earth 0.494142390517575 0.494141590552832 0.494143190494452 2.43459356931595 2.43237776475376 2469673.740458278 0.501222619789855 134.634719998306 12.3930128155453 -73.6936507050433 1055124.56548202 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:30 2020-Nov-12 19:57
2074-Jul-31 17:24 < 00:01 Earth 0.499680553524192 0.499679218519845 0.499681888528653 2.07099538074821 2.06841899433079 2478785.225139694 0.794281195543858 67.8797781061852 22.3423220571116 -12.3084231226477 735455.577333739 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:30 2020-Nov-12 19:57
2121-Aug-13 16:57 00:01 Earth 0.485737936614618 0.485737707931315 0.485738165300516 2.22856017140046 2.2260973892102 2495964.206503537 1.27758039329316 156.461754922757 10.6114364392245 -88.6680649103303 979759.59830212 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:30 2020-Nov-12 19:57
2168-Aug-24 09:08 00:02 Earth 0.496817029667433 0.496814253272908 0.496819806227591 2.5320161496904 2.5298971486192 2513141.880233722 1.73176445347436 475.129581998027 12.8374878158774 -73.2247078987443 1099285.07542909 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:30 2020-Nov-12 19:57
2193-Aug-03 07:19 00:02 Earth 0.498561484137651 0.498558238925438 0.49856472935131 2.1154138663971 2.1128859782664 2522251.805108235 1.96122785770102 167.374021906302 22.6388857384635 -15.0820456733885 619894.260207535 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:30 2020-Nov-12 19:57

Alternate Designations
 1999 RQ43 = 1998 DK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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