Diagram showing green source detection rates based on two different distance estimates. Sources placed in the Galactic center based on position all have |ℓ|   < 1.3° and |b|   < 10′. Distance estimates based on velocity are taken from C10. For comparison, the green source detection rates for masers that are not at the distance of the Galactic center (based on position or velocity) is 48.6 ± 5.9% (69/142).