ASTROSAT CZTI

Data Quality Report

Orbit 07051

Creation date: 2024-06-27T15:14:58.286459
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/AS1G06_029T01_9000000964_07051cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07051cztM0_level2_quad_clean.evt
Size (bytes)501,523,20092,810,880
Size478.3 MB 88.5 MB
Events in quadrant A3,287,818595,812
Events in quadrant B3,736,962601,923
Events in quadrant C4,243,223579,873
Events in quadrant D3,461,568561,890

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139483
B0152062
C0170412
D0144242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67541141.687889%
B67542263.346165%
C67545478.098904%
D6754851.258513%

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 7669 6755 0 0 0.00% 0.00%
B 7669 6755 52 52 0.68% 0.77%
C 7669 6755 441 441 5.75% 6.53%
D 7669 6755 13 13 0.17% 0.19%

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 13 251 10876 58.26 847 830 172.4
A 15 234 9629 51.03 847 830 172.4
A 8 15 8344 43.58 847 830 172.4
B 4 81 244165 1488.43 848 830 163.5
B 10 246 91124 552.31 848 830 163.5
B 0 214 86743 525.51 848 830 163.5
C 9 68 1166499 6352.66 786 794 183.5
C 12 4 7480 36.44 786 794 183.5
C 13 61 6094 28.88 786 794 183.5
D 8 195 188357 923.47 817 791 203.1
D 14 34 77875 379.52 817 791 203.1
D 12 233 47659 230.75 817 791 203.1

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