ASTROSAT CZTI

Data Quality Report

Orbit 29960

Creation date: 2024-06-27T20:09:12.639155
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_058T01_9000004298_29960cztM0_level2.evt modeM0/AS1A10_058T01_9000004298_29960cztM0_level2_quad_clean.evt
Size (bytes)944,386,560148,993,920
Size900.6 MB 142.1 MB
Events in quadrant A5,417,482961,174
Events in quadrant B8,546,289960,035
Events in quadrant C7,087,892930,013
Events in quadrant D6,822,611915,461

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229803
B0330803
C0285203
D0270663

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02200
B02200
C02200
D02200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10769940.872876%
B107691531.420745%
C107692111.959328%
D107693222.990064%

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 12780 10772 23 23 0.18% 0.21%
B 12780 10772 19 19 0.15% 0.18%
C 12780 10772 9 9 0.07% 0.08%
D 12780 10772 251 251 1.96% 2.33%

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 12 96 271722 1028.87 1325 1298 262.8
A 8 192 27491 99.66 1325 1298 262.8
A 13 254 19991 71.12 1325 1298 262.8
B 6 159 3050832 12357.68 1304 1272 246.8
B 6 36 329582 1330.4 1304 1272 246.8
B 12 111 30281 117.55 1304 1272 246.8
C 3 233 1775422 5948.69 1280 1286 298.2
C 14 238 211873 706.1 1280 1286 298.2
C 15 208 76443 252.0 1280 1286 298.2
D 6 112 636426 2109.62 1294 1263 301.1
D 8 195 529667 1755.03 1294 1263 301.1
D 7 80 294658 974.48 1294 1263 301.1

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