ASTROSAT CZTI

Data Quality Report

Orbit 33369

Creation date: 2024-06-27T20:48:05.711639
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/AS1A10_064T02_9000004788_33369cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33369cztM0_level2_quad_clean.evt
Size (bytes)157,000,32019,059,840
Size149.7 MB 18.2 MB
Events in quadrant A781,344120,674
Events in quadrant B1,291,988111,624
Events in quadrant C915,240116,696
Events in quadrant D1,655,035109,192

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032692
B048501
C035791
D060501

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160420.124688%
B16041599.912718%
C1604171.059850%
D160416410.224439%

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 3187 1605 0 0 0.00% 0.00%
B 3187 1605 119 119 3.73% 7.41%
C 3187 1605 11 11 0.35% 0.69%
D 3186 1604 139 139 4.36% 8.67%

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 7 16 11508 273.61 199 195 41.3
A 13 254 2566 57.34 199 195 41.3
A 3 137 1932 42.01 199 195 41.3
B 5 172 372758 9907.24 187 182 37.6
B 0 219 159562 4238.1 187 182 37.6
B 0 156 5049 129.41 187 182 37.6
C 15 214 72330 1609.07 188 189 44.8
C 0 10 49456 1098.88 188 189 44.8
C 15 208 31462 697.53 188 189 44.8
D 8 195 376289 8024.66 184 179 46.9
D 1 52 282920 6032.54 184 179 46.9
D 2 250 107508 2289.96 184 179 46.9

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