ASTROSAT CZTI

Data Quality Report

Orbit 33207

Creation date: 2024-06-27T20:46:05.164083
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_067T01_9000004770_33207cztM0_level2.evt modeM0/AS1A10_067T01_9000004770_33207cztM0_level2_quad_clean.evt
Size (bytes)561,003,84052,885,440
Size535.0 MB 50.4 MB
Events in quadrant A2,706,628324,757
Events in quadrant B4,571,280314,416
Events in quadrant C4,036,013296,183
Events in quadrant D5,329,158305,863

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109533
B0170272
C0152072
D0194942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5135100.194742%
B513571713.962999%
C51353687.166504%
D51351452.823759%

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 7258 5136 1 1 0.01% 0.02%
B 7258 5136 493 493 6.79% 9.60%
C 7258 5136 309 309 4.26% 6.02%
D 7258 5136 117 117 1.61% 2.28%

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 15 169 11742 81.11 690 679 136.4
A 13 254 9393 63.89 690 679 136.4
A 9 191 7043 46.66 690 679 136.4
B 5 172 1711118 14478.66 638 624 118.1
B 0 221 86011 722.77 638 624 118.1
B 0 197 80023 672.08 638 624 118.1
C 1 23 1034271 6937.16 655 661 149.0
C 0 10 280182 1876.03 655 661 149.0
C 9 187 70983 471.97 655 661 149.0
D 8 195 2009752 12055.2 670 656 166.7
D 1 52 199558 1193.47 670 656 166.7
D 2 250 159253 951.63 670 656 166.7

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