ASTROSAT CZTI

Data Quality Report

Orbit 06264

Creation date: 2024-06-27T15:04:52.653911
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/AS1C02_018T01_9000000822_06264cztM0_level2.evt modeM0/AS1C02_018T01_9000000822_06264cztM0_level2_quad_clean.evt
Size (bytes)121,216,32017,778,240
Size115.6 MB 17.0 MB
Events in quadrant A805,290107,636
Events in quadrant B858,748110,629
Events in quadrant C727,411112,012
Events in quadrant D1,183,271104,526

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032242
B033891
C029471
D044111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1385171.227437%
B1385342.454874%
C138540.288809%
D13851168.375451%

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 1385 1385 0 0 0.00% 0.00%
B 1385 1385 13 13 0.94% 0.94%
C 1385 1385 0 0 0.00% 0.00%
D 1385 1385 85 85 6.14% 6.14%

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 3 80 53724 1309.04 193 190 40.9
A 8 15 4905 115.29 193 190 40.9
A 0 226 1950 43.04 193 190 40.9
B 3 64 85188 2206.4 190 186 38.5
B 4 81 16609 426.29 190 186 38.5
B 11 51 12075 308.6 190 186 38.5
C 13 61 1446 28.23 186 186 44.6
C 8 222 705 11.63 186 186 44.6
C 3 202 474 6.45 186 186 44.6
D 12 220 315937 6833.18 182 176 46.2
D 2 63 98514 2128.06 182 176 46.2
D 2 152 29246 629.08 182 176 46.2

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