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Table 2

Summary of H2O2 measurements between 2001 and 2018.

Ls Date MY Observation H2O2 vmr H2O2 vmr H2O2 vmr H2O column
of obs. GEISA 2003 GEISA 2015 submm density
(ppbv) (ppbv) (ppbv) pr-μm
77 2010, April 16 30 Herschel/HIFI 3 (u.l.) 15 (1)
80 2008, May 30–June 3 28 TEXES 10 ± 5 5.7 ± 2.9 10 (1), 15 (2)
96 2014, March 1 32 TEXES 15 ± 7 8.6 ± 4.0 27 (2)
112 2001, Feb 1–3 25 TEXES 10 (u.l.) 6 (u.l.) 25 (3)
148 2016, May 16 33 TEXES 45 ± 10 16.5 (4)
156 2014, July 2–4 32 TEXES 30 ± 7 17.0 ± 4.0 22 (2)
206 2003, June 19–20 26 TEXES 32 ± 7 18.2 ± 4.0 18 (2)
209 2018, July 6–14 34 TEXES 10 (u.l.) 14.5 (4)
250 2003, Sept 4 26 JCMT 18.0 ± 4.0
332 2005, Nov 30–Dec 1 27 TEXES 15 ± 10 8.6 ± 5.7 10 (1), 9 (2)
352 2009, Oct 11–15 29 TEXES 15 ± 10 8.6 ± 5.7 10 (1), 6 (2)

Notes. The water content corresponding to these measurements is shown in the last column. Origin: (1) SPICAM (Montmessin et al. 2017), (2)TEXES, (3) TES (Smith 2004), and (4) PFS/Mars Express (Giuranna, priv. comm.). u.l.: 2σ upper limit.

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