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31458 Delrosso (1999 CG16)
Classification: Main-belt Asteroid          SPK-ID: 2031458
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1733114069418336 3.5632e-08  
a 2.639664749945366 1.0746e-08 au
q 2.182180738277571 9.6566e-08 au
i 7.036288489634766 3.7773e-06 deg
node 320.3267250877166 3.1215e-05 deg
peri 276.4749388076693 3.3583e-05 deg
M 349.0373623054477 1.0899e-05 deg
tp 2459444.201731850449
(2021-Aug-17.70173185)
4.7405e-05 TDB
period 1566.46821181506
4.29
9.5657e-06
2.619e-08
d
yr
n .2298163456396408 1.4034e-09 deg/d
Q 3.09714876161316 1.2609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1565  
   data-arc span      15245 days (41.74 yr)  
   first obs. used      1979-09-21  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:51:37  

Additional Information
 Earth MOID = 1.18454 au 
 Jupiter MOID = 1.98235 au 
 T_jup = 3.364 
[ 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 14.49   n/a MPCxxxxx  

31458 Delrosso           Discovered 1999 Feb. 15 by L. Tesi and A. Boattini at San Marcello Pistoiese.
Renzo Del Rosso (b. 1957) has been an amateur astronomer since his childhood. He is an astrophotographer, lecturer and writer of astronomical software. He loves to search for new techniques to work with astronomical photographs.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040928/MPCPages.arcLast Updated: 2004-09-28

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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
1929-Apr-24 16:49 00:02 Jupiter 1.97336834373013 1.97336797978095 1.9733687076792 1.79443260708782 1.53672861968924 2425726.200640224 1.5418878598644 45.3594600711438 29.9361838023973 -87.0733121449887 2680169.68150649 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 06:52:05 2021-Jul-08 06:52
1976-Apr-12 18:52 < 00:01 Jupiter 1.97935558468964 1.97935523692728 1.97935593245211 1.93274882280024 1.6969564428256 2442881.286132819 0.694686449697865 50.1947432745633 26.3292162181707 86.7150192256243 2618335.23687266 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 06:52:05 2021-Jul-08 06:52
2130-Nov-29 12:08 00:02 Jupiter 1.97098528292101 1.97098492981425 1.97098563602766 1.80645360873102 1.55041387331499 2499359.005662333 2.14018015048144 49.4445990688784 30.4624951155562 -78.0887957021475 2572051.59256773 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 06:52:05 2021-Jul-08 06:52
2177-Nov-16 23:07 00:03 Jupiter 1.99575158182249 1.99575090539856 1.99575225824857 2.01345903215193 1.79030491257283 2516513.463383716 3.00148954778259 147.861299820808 23.8762645165178 72.9381210575195 2570112.12685857 T 34 CATAB v2.0g-lin.ifort 2021-Jul-08 06:52:05 2021-Jul-08 06:52

Alternate Designations
 1999 CG16 = 1996 PZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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