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9951 Tyrannosaurus (1990 VK5)
Classification: Main-belt Asteroid          SPK-ID: 2009951
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122729008023982 2.4598e-08  
a 2.426034070902596 7.6072e-09 au
q 2.128289315948337 5.8347e-08 au
i 7.402929897563602 2.6838e-06 deg
node 133.3918201648167 3.0944e-05 deg
peri 153.0234942595939 3.5401e-05 deg
M 108.6359617207376 1.7725e-05 deg
tp 2458784.000117604945
6.8052e-05 TDB
period 1380.205553366015
n .2608307140353405 1.2268e-09 deg/d
Q 2.723778825856854 8.5408e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2152  
   data-arc span      17010 days (46.57 yr)  
   first obs. used      1974-07-19  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4634  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:43:58  

Additional Information
 Earth MOID = 1.11302 au 
 Jupiter MOID = 2.43526 au 
 T_jup = 3.489 
[ 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 14.30   n/a E2021B10  
rotation period rot_per 3.767 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Marchini, A.; Franco, L.; Papini, R.; Banfi, M.; et al. (2019) Minor Planet Bull. 46, 504-505.]

9951 Tyrannosaurus           Discovered 1990 Nov. 15 by E. W. Elst at the European Southern Observatory.
Tyrannosaurus, a heavy bipedal dinosaur with a huge skull, long massive jaws and dagger-like teeth, was a most terrifying predator. Almost 14 meters long and 5 to 8 meters high, it lived during Upper Cretaceous times.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
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
1935-Jun-05 20:17 < 00:01 Amphi 0.0427541750552655 0.0427490924534027 0.0427592591446659 5.04690434324868 5.04690431660652 2427959.345243040 0.42805286035063 474.370934720614 33.3259858716155 57.9377473139553 162749.496567602 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 21:44:21 2021-Apr-12 21:44

Alternate Designations
 1990 VK5 = 1974 OG1 = 1992 EZ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2021-Apr-13 06:12 UT
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