Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
3141 Buchar (1984 RH)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003141
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07172531108606149 3.7483e-08  
a 3.413323489015605 2.0034e-08 au
q 3.1685017999286 1.2479e-07 au
i 11.00340334473025 4.6954e-06 deg
node 321.0576108463129 2.0741e-05 deg
peri 154.5529637100805 3.7842e-05 deg
M 196.0348898525505 3.1827e-05 deg
tp 2460445.591927556244
(2024-May-15.09192756)
0.00020657 TDB
period 2303.374745887198
6.31
2.0279e-05
5.552e-08
d
yr
n .1562924142685856 1.376e-09 deg/d
Q 3.65814517810261 2.1471e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2656  
   data-arc span      42550 days (116.50 yr)  
   first obs. used      1905-02-09  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39122  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 09:20:54  

Additional Information
 Earth MOID = 2.18887 au 
 Jupiter MOID = 1.41232 au 
 T_jup = 3.110 
[ 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 10.93   n/a E2021B10  
diameter diameter 36.05 km 2.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 11.41 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:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.0858   0.012 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6

3141 Buchar (1984 RH)          Discovered 1984-Sep-02 by Mrkos, A. at Klet
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
1901-Mar-30 00:43 00:04 Jupiter 1.730808069177 1.73080606344643 1.73081007491682 2.83500772046462 2.65678549567185 2415473.530156923 4.00658642879924 236.774560491978 21.6081725550851 59.8272335707676 2664465.12737096 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
1914-Aug-22 11:48 00:03 Jupiter 1.41682583040053 1.41682544616593 1.41682621463706 3.42160459392719 3.2421776392676 2420366.992013883 2.97593756343059 370.020509280104 15.9102017466279 88.6403370586527 3071408.31159931 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
1928-Jan-23 23:28 00:03 Jupiter 1.65107954891963 1.65107796130484 1.6510811365666 2.92995843629795 2.74929696168269 2425269.477774275 3.11391423318948 445.903447018447 37.8246217848388 79.713530174233 2581549.21585602 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
1941-Sep-22 00:18 00:02 Jupiter 1.94803692363265 1.94803626735418 1.94803757991112 3.61042485798851 3.48791501762016 2430259.512822989 2.44995894469576 81.1510575205464 25.515515745345 89.1129915429743 2588512.03992109 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
1995-Mar-08 07:59 < 00:01 Jupiter 1.97445403532968 1.97445334457499 1.97445472608447 2.66246794815538 2.49614784845835 2449784.832617092 0.880403805663355 50.9280955314436 18.1959614445214 57.5704699022112 3395181.17296739 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
2008-Sep-16 00:18 < 00:01 Jupiter 1.54419019110945 1.54418973652769 1.54419064569174 3.28534916109029 3.11391631654972 2454725.512224851 0.370674633324574 104.097058030945 13.9022685720193 81.2875689393927 2953587.4995371 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
2022-Jan-17 05:05 < 00:01 Jupiter 1.45482460125749 1.45482410259703 1.45482509992366 3.27770761011049 3.09498541106871 2459596.711926996 0.361282853392697 349.689533423074 17.760207468977 87.3836971030098 2713712.15835712 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
2035-Aug-31 03:06 < 00:01 Jupiter 1.81182268185922 1.81182205398665 1.81182330973179 2.64006978605104 2.4566183148495 2464570.629357939 0.919137229197655 44.5840453352363 17.4434045281403 -64.61635748738 2824116.32196455 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
2049-Mar-19 04:28 00:01 Jupiter 1.97056323430819 1.97056275572386 1.97056371289253 4.39942457134842 4.30061170231177 2469519.685855758 1.11264803379585 68.6360735958292 21.3518440741911 -88.5314509786586 3532211.5236888 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
2102-Sep-24 07:36 00:03 Jupiter 1.79119959536935 1.79119786827233 1.79120132247044 3.01406108597624 2.8528589481619 2489065.816924259 2.92548488825658 168.426959484427 20.3634061765733 57.4892756961819 3113531.50407313 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
2116-Feb-16 15:39 00:03 Jupiter 1.43132173953746 1.43132091163549 1.43132256748353 3.42026435552648 3.24263092921515 2493959.152320042 2.98554011948955 449.369543734365 11.0738880443093 85.2043396655057 2587414.77447267 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
2129-Jul-20 10:11 00:04 Jupiter 1.59922138433033 1.59921970056497 1.59922306830214 2.73938366164833 2.53868651425446 2498861.924462968 4.23199972713951 1053.94317116636 33.6148650652652 84.0779259476984 2522319.25037497 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
2143-Apr-07 21:27 00:05 Jupiter 1.88940179347533 1.88940085956798 1.88940272738472 3.41151086748894 3.27746891610751 2503871.393987961 4.51747494753494 158.457222835314 25.9326810426397 87.6846395596701 2214991.01727244 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21
2156-Aug-29 13:10 00:04 Jupiter 1.99779762720508 1.99779681858102 1.99779843583447 4.91357491456644 4.82651656705098 2508764.048597556 4.14056134832972 200.755437751376 20.4196872699052 81.2498374677691 4344510.60750534 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 09:21:10 2021-Aug-25 09:21

Alternate Designations
 1984 RH = 1952 PE = 1952 RQ = 1953 UF = 1953 VK2 = 1977 NM = 1977 OE = 1979 YW9 = A905 CE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-18 11:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin