ASTROSAT CZTI

Data Quality Report

Orbit 04438

Creation date: 2024-06-27T14:42:05.817531
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_245T01_9000000554_04438cztM0_level2.evt modeM0/AS1G05_245T01_9000000554_04438cztM0_level2_quad_clean.evt
Size (bytes)76,412,16020,450,880
Size72.9 MB 19.5 MB
Events in quadrant A530,496134,217
Events in quadrant B560,828134,652
Events in quadrant C541,703131,963
Events in quadrant D594,638125,690

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024531
B024690
C024580
D026530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A122400.000000%
B122400.000000%
C122400.000000%
D122420.163399%

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 1224 1224 0 0 0.00% 0.00%
B 1224 1224 0 0 0.00% 0.00%
C 1224 1224 0 0 0.00% 0.00%
D 1224 1224 3 3 0.25% 0.25%

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 12 194 1343 40.42 137 135 29.9
A 0 226 1294 38.78 137 135 29.9
A 13 254 603 15.66 137 135 29.9
B 14 167 3725 125.87 142 139 28.5
B 15 204 3114 104.43 142 139 28.5
B 12 111 2542 84.35 142 139 28.5
C 9 247 1624 43.66 137 139 34.0
C 9 16 1437 38.16 137 139 34.0
C 13 61 1109 28.52 137 139 34.0
D 2 63 65236 1863.54 133 129 34.9
D 2 14 14944 424.05 133 129 34.9
D 2 31 7088 199.19 133 129 34.9

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