ASTROSAT CZTI

Data Quality Report

Orbit 15763

Creation date: 2024-06-27T17:13:10.290946
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/AS1T02_088T01_9000002332_15763cztM0_level2.evt modeM0/AS1T02_088T01_9000002332_15763cztM0_level2_quad_clean.evt
Size (bytes)264,818,88042,580,800
Size252.6 MB 40.6 MB
Events in quadrant A1,926,950254,168
Events in quadrant B1,987,419262,986
Events in quadrant C1,963,395248,548
Events in quadrant D1,868,809240,978

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081601
B082541
C081511
D081791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A399910.025006%
B399960.150038%
C3999150.375094%
D399930.075019%

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 4000 4000 0 0 0.00% 0.00%
B 4000 4000 0 0 0.00% 0.00%
C 4000 4000 0 0 0.00% 0.00%
D 4000 4000 1 1 0.03% 0.03%

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 4 2 14355 137.45 496 487 100.9
A 9 143 5159 46.31 496 487 100.9
A 0 226 4396 38.74 496 487 100.9
B 12 111 10821 108.61 503 492 95.1
B 4 251 10123 101.27 503 492 95.1
B 11 111 9240 91.98 503 492 95.1
C 14 238 75166 666.16 481 486 112.1
C 7 247 4911 39.47 481 486 112.1
C 3 233 4389 34.82 481 486 112.1
D 5 51 22460 172.83 475 465 127.3
D 1 52 17648 135.02 475 465 127.3
D 2 234 14091 107.07 475 465 127.3

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