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(2018 UQ1)
Classification: Apollo [NEO, PHA]          SPK-ID: 3831916
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4916331301171273 3.1885e-08  
a 1.61316789062219 2.5371e-08 au
q .8200811111511589 4.7356e-08 au
i 1.610779088682393 5.6345e-06 deg
node 255.3975406446202 0.00011723 deg
peri 218.9769581549156 0.00011727 deg
M 250.131711174149 6.8561e-06 deg
tp 2459228.895551123298
(2021-Jan-14.39555112)
1.9483e-05 TDB
period 748.3724310543823
2.05
1.7655e-05
4.834e-08
d
yr
n .4810439095047847 1.1348e-08 deg/d
Q 2.40625467009322 3.7844e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      732 days (2.00 yr)  
   first obs. used      2018-10-20  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36236  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 09:06:15  

Additional Information
 Earth MOID = .0104726 au 
 Jupiter MOID = 2.72328 au 
 T_jup = 4.195 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458601.5 (2019-Apr-28.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4912100234363193 3.1757e-08  
q .8208634615548829 4.7106e-08 au
tp 2458480.169659885914
(2018-Dec-27.66965989)
4.2582e-06 TDB
node 255.4145390109605 0.00011712 deg
peri 218.9102262956557 0.00011716 deg
i 1.611098685167963 5.6398e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      732 days (2.00 yr)  
   first obs. used      2018-10-20  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36236  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 09:06:15  

Additional Information
 Jupiter MOID = 2.72328 au 
 T_jup = 4.195 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.008530380077429E-15 -1.449513857229551E-15 5.395041680818479E-14 -3.461151216097084E-13 5.33554722962754E-13 1.137763464963341E-14
q -1.449513857229551E-15 2.219003046560012E-15 -6.872993151313672E-14 5.982360813431927E-13 -8.668185774314439E-13 -1.55300032763131E-14
tp 5.395041680818479E-14 -6.872993151313672E-14 1.813202523664654E-11 4.319318223633815E-11 -1.642246870876282E-11 1.132243720404197E-12
node -3.461151216097084E-13 5.982360813431927E-13 4.319318223633815E-11 1.371627967955418E-8 -1.36942801594683E-8 -6.270705757022104E-10
peri 5.33554722962754E-13 -8.668185774314439E-13 -1.642246870876282E-11 -1.36942801594683E-8 1.372697835643609E-8 6.291129714947757E-10
i 1.137763464963341E-14 -1.55300032763131E-14 1.132243720404197E-12 -6.270705757022104E-10 6.291129714947757E-10 3.180744373502554E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.0   .41718 E2018X48 autocmod 2.6q
rotation period rot_per 3.9291 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2018) http://www.asu.cas.cz/~ppravec/neo.htm]
[López-Oquendo, A.J.; Cotto-Figueroa, D. (2019) Minor Planet Bull. 46, 190-191.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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