ASTROSAT CZTI

Data Quality Report

Orbit 06348

Creation date: 2024-06-27T15:06:00.082940
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_132T01_9000000838_06348cztM0_level2.evt modeM0/AS1G06_132T01_9000000838_06348cztM0_level2_quad_clean.evt
Size (bytes)501,871,68081,126,720
Size478.6 MB 77.4 MB
Events in quadrant A2,925,906518,958
Events in quadrant B4,057,040509,046
Events in quadrant C2,739,494517,568
Events in quadrant D5,053,305475,320

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130261
B0163311
C0127111
D0192881

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6242300.480615%
B62422644.229414%
C6242130.208267%
D62424397.033002%

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 6762 6243 8 8 0.12% 0.13%
B 6762 6243 143 143 2.11% 2.29%
C 6762 6243 0 0 0.00% 0.00%
D 6762 6243 429 429 6.34% 6.87%

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 15 236 59103 403.44 707 690 144.8
A 15 174 53030 361.5 707 690 144.8
A 13 251 40877 277.56 707 690 144.8
B 3 64 923117 6718.72 704 686 137.3
B 15 204 123111 891.7 704 686 137.3
B 0 229 103295 747.37 704 686 137.3
C 4 254 42091 260.2 683 685 159.1
C 9 54 11893 70.43 683 685 159.1
C 1 16 8078 46.46 683 685 159.1
D 12 220 1392494 8377.32 669 646 166.1
D 12 221 295008 1771.72 669 646 166.1
D 2 152 190622 1143.44 669 646 166.1

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