ASTROSAT CZTI

Data Quality Report

Orbit 29758

Creation date: 2024-06-27T20:07:29.359845
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_291T01_9000004278_29758cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29758cztM0_level2_quad_clean.evt
Size (bytes)572,503,68064,987,200
Size546.0 MB 62.0 MB
Events in quadrant A3,205,457400,437
Events in quadrant B5,427,224393,449
Events in quadrant C3,589,849373,272
Events in quadrant D4,695,588366,725

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134701
B0201011
C0146261
D0181581

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6203671.080123%
B62041852.981947%
C62041241.998711%
D62043555.722115%

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 7373 6203 0 0 0.00% 0.00%
B 7374 6204 39 39 0.53% 0.63%
C 7374 6204 10 10 0.14% 0.16%
D 7373 6203 253 253 3.43% 4.08%

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 11821 67.23 830 815 163.7
A 3 137 7544 41.11 830 815 163.7
A 0 226 7050 38.09 830 815 163.7
B 6 159 1800224 11751.17 814 794 153.1
B 5 255 201330 1309.6 814 794 153.1
B 0 229 190920 1241.62 814 794 153.1
C 3 233 382606 2135.94 778 784 178.8
C 14 238 127585 709.33 778 784 178.8
C 7 247 30627 166.94 778 784 178.8
D 7 80 889441 4846.42 783 763 183.4
D 8 195 723496 3941.44 783 763 183.4
D 2 250 55283 297.33 783 763 183.4

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