ASTROSAT CZTI

Data Quality Report

Orbit 04348

Creation date: 2024-06-27T14:40:42.539060
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_219T01_9000000540_04348cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04348cztM0_level2_quad_clean.evt
Size (bytes)324,924,48016,488,000
Size309.9 MB 15.7 MB
Events in quadrant A1,024,015100,274
Events in quadrant B6,392,60021,518
Events in quadrant C1,039,47498,567
Events in quadrant D1,211,10196,567

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050871
B0207060
C051580
D055735

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A252400.000000%
B2524226289.619651%
C252410.039620%
D2522160.634417%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 2525 2525 0 0 0.00% 0.00%
B 2524 2523 2235 2235 88.55% 88.59%
C 2525 2525 1 1 0.04% 0.04%
D 2524 2524 19 19 0.75% 0.75%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 251 10560 186.91 259 254 55.1
A 13 14 6074 105.55 259 254 55.1
A 14 111 4793 82.32 259 254 55.1
B 3 0 5856428 221160.11 129 126 26.5
B 14 167 14997 561.6 129 126 26.5
B 4 48 6431 238.1 129 126 26.5
C 9 247 54050 886.1 251 251 60.7
C 10 65 2321 34.09 251 251 60.7
C 13 61 2134 31.01 251 251 60.7
D 12 233 77250 1248.02 246 238 61.7
D 13 53 51373 828.67 246 238 61.7
D 13 223 47462 765.29 246 238 61.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter