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Table 4 Summary of SPC accuracy and precision assessments from previous efforts

From: High-resolution shape models of Phobos and Deimos from stereophotoclinometry

Model

Notes

Accuracya

Precisionb

Reference

Eros

SPC vs shifted NLR tracks

n/ac

0.5 × 

Roberts et al. 2014b

Eros

SPC vs NLR ranges to surface

2 × 

n/a

Barnouin personal communication

Test wall

SPC vs altimetry

n/a

1.5 × 

Craft et al. 2020

Bennu

SPC vs OLA; SPC-derived metrics

1.3–4.5 × 

6 × 

Al Asad et al. 2021

Test Bennu

SPC vs truth model

1–2.5 × 

n/a

Barnouin et al. 2020; Weirich et al. 2022

Ceres

Relative error analysis; modeling from independent sets of images

n/a

0.6 × 

Park et al. 2019

Rule of Thumb

Assuming ideal SPC image criteria are met

1–5 × 

0.5–6 × 

Range from values above

  1. aValues with respect to the representative mean pixel scale of the images used to make the SPC model that satisfy the sufficient SPC imaging criteria
  2. bValues with respect to the representative best pixel scale of the images used to make the SPC model
  3. cn/a indicates a value not discussed in the reference