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14538 (1997 RR8)
Classification: Main-belt Asteroid          SPK-ID: 2014538
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06266182021387359 3.4521e-08  
a 2.983253695361237 1.723e-08 au
q 2.796317588650138 1.0342e-07 au
i 10.0635708102715 4.4514e-06 deg
node 193.19823876893 2.1193e-05 deg
peri 69.79090704411735 4.077e-05 deg
M 276.3467621443557 3.511e-05 deg
tp 2459637.834724962477
(2022-Feb-27.33472496)
0.00018438 TDB
period 1882.061053729657
5.15
1.6305e-05
4.464e-08
d
yr
n .1912796608200315 1.6572e-09 deg/d
Q 3.170189802072337 1.831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1659  
   data-arc span      10334 days (28.29 yr)  
   first obs. used      1992-10-03  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50217  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:10:57  

Additional Information
 Earth MOID = 1.80021 au 
 Jupiter MOID = 1.87618 au 
 T_jup = 3.232 
[ 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 13.72   n/a E2020-QM5  
diameter diameter 6.092 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 21.3706 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.]
geometric albedo albedo 0.189   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14538 (1997 RR8)          Discovered 1997-Sep-12 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20000418/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
1905-Nov-05 08:05 00:03 Jupiter 1.92328879814026 1.92328795297698 1.92328964330704 3.52353325919708 3.39624502283003 2417154.836609358 2.79620262588392 154.732881022354 18.8818259378388 73.9404217614718 3255891.45950556 T 33 CATAB v2.0f-lin.ifort 2021-Feb-24 19:11:01 2021-Feb-24 19:11
1987-Oct-08 14:34 < 00:01 Jupiter 1.88658724230956 1.88658686662674 1.88658761799238 4.06857919062219 3.95668991735144 2447077.106874362 0.687515262155141 65.1216288248285 16.1974601424172 -86.3446758750884 3573052.50380604 T 33 CATAB v2.0f-lin.ifort 2021-Feb-24 19:11:01 2021-Feb-24 19:11
2024-Mar-31 20:00 < 00:01 Jupiter 1.9005330972053 1.90053272921377 1.90053346519683 3.61055844987422 3.48493612067545 2460401.333511066 0.301287493142517 48.3293288380846 15.6813330988507 88.2642494472741 3450413.47533698 T 33 CATAB v2.0f-lin.ifort 2021-Feb-24 19:11:01 2021-Feb-24 19:11
2106-Mar-07 07:25 00:02 Jupiter 1.91758342449374 1.91758276548047 1.91758408351159 4.19186264304822 4.08512978827686 2490325.808804990 2.24421019895619 183.896895707799 16.3549841818552 -82.1033075528266 3729258.5811479 T 33 CATAB v2.0f-lin.ifort 2021-Feb-24 19:11:01 2021-Feb-24 19:11
2142-Aug-27 16:28 00:03 Jupiter 1.88830572010883 1.8883052394443 1.88830620077764 3.71861901068355 3.59597038391374 2503648.186088480 3.21922439910279 226.534421866793 16.353320421711 84.4245449387184 3196798.87740987 T 33 CATAB v2.0f-lin.ifort 2021-Feb-24 19:11:01 2021-Feb-24 19:11
2179-Mar-02 03:59 00:04 Jupiter 1.99446641169073 1.99446509105701 1.99446773232627 3.14859673111624 3.01069573692974 2516983.666019285 4.37469355487335 123.480207589155 27.9500443824097 53.6968661489411 3061456.99332579 T 33 CATAB v2.0f-lin.ifort 2021-Feb-24 19:11:01 2021-Feb-24 19:11

Alternate Designations
 1997 RR8 = 1998 XQ84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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