ASTROSAT CZTI

Data Quality Report

Orbit 22129

Creation date: 2024-06-27T18:37:11.438276
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/AS1T03_145T01_9000003278_22129cztM0_level2.evt modeM0/AS1T03_145T01_9000003278_22129cztM0_level2_quad_clean.evt
Size (bytes)497,093,76076,665,600
Size474.1 MB 73.1 MB
Events in quadrant A3,280,690474,531
Events in quadrant B3,534,297484,577
Events in quadrant C3,387,145464,250
Events in quadrant D4,407,688441,000

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137442
B0145073
C0141252
D0174132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6542470.718435%
B6542851.299297%
C6542981.498013%
D65422654.050749%

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 8737 6544 1 1 0.01% 0.02%
B 8737 6544 11 11 0.13% 0.17%
C 8737 6544 0 0 0.00% 0.00%
D 8737 6544 186 186 2.13% 2.84%

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 11172 60.91 849 834 169.7
A 5 16 9833 53.02 849 834 169.7
A 0 226 7094 36.88 849 834 169.7
B 3 64 105561 664.65 850 831 157.6
B 10 246 84295 529.69 850 831 157.6
B 12 111 19198 116.56 850 831 157.6
C 14 238 131625 686.13 827 835 190.6
C 10 22 22092 111.51 827 835 190.6
C 9 54 7056 32.64 827 835 190.6
D 11 176 616510 3127.35 821 799 196.9
D 2 133 258992 1311.43 821 799 196.9
D 1 52 109003 549.59 821 799 196.9

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