ASTROSAT CZTI

Data Quality Report

Orbit 06053

Creation date: 2024-06-27T15:02:12.802795
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_024T01_9000000780_06053cztM0_level2.evt modeM0/AS1G06_024T01_9000000780_06053cztM0_level2_quad_clean.evt
Size (bytes)143,576,64030,562,560
Size136.9 MB 29.1 MB
Events in quadrant A1,043,949191,936
Events in quadrant B1,111,847195,845
Events in quadrant C1,013,498191,713
Events in quadrant D1,025,300184,913

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046682
B047611
C046281
D047093

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2224160.719424%
B2224291.303957%
C2224231.034173%
D2223381.709402%

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 2824 2225 0 0 0.00% 0.00%
B 2824 2225 0 0 0.00% 0.00%
C 2824 2225 0 0 0.00% 0.00%
D 2824 2225 3 3 0.11% 0.13%

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 8 15 18891 331.56 263 257 56.2
A 7 16 5674 96.39 263 257 56.2
A 10 1 2573 41.21 263 257 56.2
B 15 204 29636 547.0 269 263 53.7
B 4 81 13546 247.36 269 263 53.7
B 0 214 7623 137.06 269 263 53.7
C 9 54 2921 42.86 258 259 62.1
C 13 61 2089 29.46 258 259 62.1
C 1 16 1107 13.65 258 259 62.1
D 8 195 24481 375.18 256 247 64.6
D 12 221 13752 209.08 256 247 64.6
D 2 63 13587 206.52 256 247 64.6

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