ASTROSAT CZTI

Data Quality Report

Orbit 48361

Creation date: 2024-09-07T09:31:46.436207
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/AS1A13_029T01_9000006426_48361cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48361cztM0_level2_quad_clean.evt
Size (bytes)480,349,440114,929,280
Size458.1 MB 109.6 MB
Events in quadrant A7,572,272744,489
Events in quadrant B3,418,052792,472
Events in quadrant C3,127,716764,130
Events in quadrant D3,131,538701,766

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280444
B0145832
C0141932
D0141852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68464256.208005%
B68461452.118025%
C6846620.905638%
D6846711.037102%

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 7951 6846 93 93 1.17% 1.36%
B 7951 6846 14 14 0.18% 0.20%
C 7951 6847 9 9 0.11% 0.13%
D 7951 6846 4 4 0.05% 0.06%

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 10 83 4319633 26364.35 788 770 163.8
A 13 248 192880 1172.73 788 770 163.8
A 15 235 14543 84.08 788 770 163.8
B 4 21 114817 731.58 794 770 155.9
B 0 198 59533 376.95 794 770 155.9
B 8 234 32471 203.35 794 770 155.9
C 12 249 31565 167.4 783 787 183.9
C 1 3 17983 93.53 783 787 183.9
C 12 2 14186 72.87 783 787 183.9
D 2 249 47247 233.86 792 770 198.7
D 2 233 32508 159.7 792 770 198.7
D 2 234 30895 151.58 792 770 198.7

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