Table 4 Parameter estimates for the asteroids data

$\widehat{\mathit{\alpha }}=0.0129$

$\widehat{\mathit{\lambda }}=0.1498\left(0.0185\right)$

$\widehat{\mathit{\beta }}=0.0070$

$\widehat{\mathit{\mu }}=6.0348\left(0.0685\right)$

$\widehat{\mathit{\mu }}=5.7466$

$\widehat{\sigma }=0.2604\left(0.010\right)$

$\widehat{\sigma }=0.0675$

-109.4800

-111.4287

226.9600

228.4974

0.1233

0.0988

0.1377

0.3572