ASTROSAT CZTI

Data Quality Report

Orbit 25314

Creation date: 2024-06-27T19:16:14.321538
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/AS1A07_059T07_9000003704_25314cztM0_level2.evt modeM0/AS1A07_059T07_9000003704_25314cztM0_level2_quad_clean.evt
Size (bytes)186,341,76021,539,520
Size177.7 MB 20.5 MB
Events in quadrant A914,365143,570
Events in quadrant B898,972145,332
Events in quadrant C893,447134,221
Events in quadrant D2,834,139118,790

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037430
B036540
C036440
D094110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1476432.913279%
B1476372.506775%
C1476412.777778%
D147564743.864407%

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 2691 1477 0 0 0.00% 0.00%
B 2691 1477 0 0 0.00% 0.00%
C 2691 1477 0 0 0.00% 0.00%
D 2690 1476 623 623 23.16% 42.21%

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 13 254 2207 40.86 237 234 48.3
A 0 226 2127 39.21 237 234 48.3
A 3 137 1844 33.34 237 234 48.3
B 12 111 5095 109.42 229 225 44.5
B 11 111 4382 93.4 229 225 44.5
B 14 111 4271 90.91 229 225 44.5
C 14 238 37155 714.43 216 218 51.7
C 9 54 13027 247.75 216 218 51.7
C 3 233 2049 35.41 216 218 51.7
D 1 52 1898190 37637.77 205 199 50.4
D 7 238 122815 2431.51 205 199 50.4
D 8 195 31242 615.59 205 199 50.4

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