ASTROSAT CZTI

Data Quality Report

Orbit 29249

Creation date: 2024-06-27T20:02:13.067090
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_115T01_9000004206_29249cztM0_level2.evt modeM0/AS1A10_115T01_9000004206_29249cztM0_level2_quad_clean.evt
Size (bytes)597,536,64048,435,840
Size569.9 MB 46.2 MB
Events in quadrant A2,064,257351,632
Events in quadrant B2,847,314342,426
Events in quadrant C9,249,882179,168
Events in quadrant D3,655,744301,469

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086191
B0110411
C0302763
D0135141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4117451.093029%
B41172335.659461%
C4116364888.629738%
D411654813.313897%

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 5082 4118 0 0 0.00% 0.00%
B 5082 4118 111 111 2.18% 2.70%
C 5081 4117 3043 3043 59.89% 73.91%
D 5081 4116 376 376 7.40% 9.14%

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 1 113 14119 126.37 529 519 107.6
A 0 13 10357 91.41 529 519 107.6
A 13 254 7888 68.47 529 519 107.6
B 10 245 513048 5151.81 517 504 99.5
B 0 229 169467 1698.32 517 504 99.5
B 0 183 108899 1089.53 517 504 99.5
C 3 233 7892682 101357.17 332 335 77.9
C 14 238 51929 662.59 332 335 77.9
C 2 114 6598 80.43 332 335 77.9
D 1 52 1598902 14700.08 461 450 108.7
D 8 195 179849 1649.83 461 450 108.7
D 7 80 28355 256.63 461 450 108.7

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