ASTROSAT CZTI

Data Quality Report

Orbit 09644

Creation date: 2024-06-27T15:48:50.116287
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/AS1A03_077T01_9000001372_09644cztM0_level2.evt modeM0/AS1A03_077T01_9000001372_09644cztM0_level2_quad_clean.evt
Size (bytes)176,806,08033,114,240
Size168.6 MB 31.6 MB
Events in quadrant A1,322,069209,939
Events in quadrant B1,294,028195,845
Events in quadrant C1,267,880218,477
Events in quadrant D1,277,849178,985

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074
B072
C074
D074

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016498
B0163103
C016498
D016397

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01667710862
B01714911593
C01648510698
D01960314106

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2796391.394850%
B2692291.077266%
C283780.281988%
D2579240.930593%

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 8657 4380 4 4 0.05% 0.09%
B 8660 4231 0 0 0.00% 0.00%
C 8655 4436 0 0 0.00% 0.00%
D 8655 4054 0 0 0.00% 0.00%

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 15 174 40114 567.31 332 323 70.1
A 0 226 3159 40.43 332 323 70.1
A 12 194 2759 34.73 332 323 70.1
B 0 214 23273 366.15 318 310 62.7
B 0 219 13568 211.4 318 310 62.7
B 0 229 9902 152.95 318 310 62.7
C 13 61 2515 28.27 324 326 77.4
C 8 222 1674 17.41 324 326 77.4
C 14 234 1062 9.51 324 326 77.4
D 8 195 54192 722.81 293 285 74.6
D 12 233 23728 314.33 293 285 74.6
D 1 52 22308 295.29 293 285 74.6

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