| Mean tangent Longit.: | 283˚ | 310˚ | 328˚ | 338˚ | 346˚ | 018˚ | 030˚ | 050˚ |
| At Gal. radius (kpc): | 8.0 | 6.3 | 4.5 | 3.2 | 2.5 | 2.8 | 4.2 | 6.3 |
| Chemical Tracer: | Vrad in Carina arm (km/s) | Vrad in Crux- Centaurus arm (km/s) | Vrad in Normal arm (km/s) | Vrad in Start of Perseus arm (km/s) | Vrad in start of sagittarius arm (km/s) | Vrad in Start of Norma arm (km/s) | Vrad in Scutum arm (km/s) | Vrad in Sagittarius arm (km/s) |
| Blue group: | ||||||||
| 12CO at 8' | −8.8 | −46.6 | −97.6 | −126.7 | −136 | +125 | +95.0 | +55.3 |
| [CII] at 80" | − | − | −106 (d) | −120 (e) | − | − | − | − |
| [CII] at 12" | − | − | − | − | − | − | +114 (b) | − |
| HI atom | −9 | −44 | −79 | − | − | − | − | − |
| HII complex | − | − | − | − | − | − | +100.0 | +61 |
| 13CO | − | −35 | −85 | −115 | − | − | +95.0 | +60 |
| Blue mean radial vel.: | −9 ± 5 | −42 ± 5 | −92 ± 5 | −121 ± 5 | −136 ± 5 | +125 ± 5 | +101 ± 5 | +59 ± 5 |
| Orange group: | ||||||||
| [CII] at 80" | − | − | −99 (f) | −127 (g) | − | − | − | |
| [Cii] at 12" | − | − | − | − | − | − | +115© | − |
| Warm 12CO cores | − | − | − | − | − | − | 95 | 60 |
| Masers | +10 | −56.5 | −102 | −106.7 | −120 | +105 | +100.8 | +65.5 |
| Orange mean radial vel.: | +10 ± 5 | −56 ± 5 | −101 ± 5 | −117 ± 5 | −120 ± 5 | +105 ± 5 | +104 ± 5 | +63 ± 5 |
| Orange-Blue radial vel.: | +19 ± 5 | −14 ± 5 | −9 ± 5 | +4 ± 5 | +16 ± 5 | −20 ± 5 | +3 ± 5 | +4 ± 5 |
| Masers –12CO radial vel | +19 ± 5 | −10 ± 5 | −4 ± 5 | +4 ± 5 | +16 ± 5 | −20 ± 5 | +6 ± 5 | +10 ± 5 |