ASTROSAT CZTI

Data Quality Report

Orbit 28713

Creation date: 2024-06-27T19:53:07.158526
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_058T09_9000004100_28713cztM0_level2.evt modeM0/AS1A10_058T09_9000004100_28713cztM0_level2_quad_clean.evt
Size (bytes)309,830,40043,248,960
Size295.5 MB 41.2 MB
Events in quadrant A2,066,040258,343
Events in quadrant B2,101,604259,613
Events in quadrant C2,409,026240,627
Events in quadrant D2,506,924241,765

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016162
B016779
C016672
D016877

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106
B01110
C0117
D0128

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163837356
B0166227537
C0180388320
D0190268612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4418160.362155%
B4384200.456204%
C4325631.456647%
D4343541.243380%

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 9319 4905 0 0 0.00% 0.00%
B 9366 4865 0 0 0.00% 0.00%
C 9330 4815 0 0 0.00% 0.00%
D 9282 4827 33 33 0.36% 0.68%

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 14 239 11745 104.17 531 519 107.8
A 13 254 7585 65.57 531 519 107.8
A 15 174 5601 47.16 531 519 107.8
B 0 190 26161 251.02 522 507 102.2
B 10 245 18794 178.94 522 507 102.2
B 12 111 12477 117.12 522 507 102.2
C 3 233 348457 2949.95 496 499 118.0
C 14 238 91216 769.09 496 499 118.0
C 14 254 16602 136.52 496 499 118.0
D 1 52 339311 2772.16 501 485 122.2
D 8 195 213261 1740.86 501 485 122.2
D 7 80 21494 171.89 501 485 122.2

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