ASTROSAT CZTI

Data Quality Report

Orbit 32007

Creation date: 2024-06-27T20:35:11.301893
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/AS1A10_109T01_9000004678_32007cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32007cztM0_level2_quad_clean.evt
Size (bytes)311,503,68041,860,800
Size297.1 MB 39.9 MB
Events in quadrant A1,620,755273,907
Events in quadrant B2,462,423270,017
Events in quadrant C2,235,041253,534
Events in quadrant D2,904,381249,236

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065431
B095201
C086791
D0107903

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30921103.557568%
B30921876.047865%
C30922237.212160%
D30911514.885150%

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 3907 3092 0 0 0.00% 0.00%
B 3906 3091 11 11 0.28% 0.36%
C 3907 3092 17 17 0.44% 0.55%
D 3906 3091 21 21 0.54% 0.68%

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 13 254 5505 59.24 419 410 86.0
A 3 137 4320 45.46 419 410 86.0
A 0 226 3539 36.38 419 410 86.0
B 6 159 787992 9848.1 407 398 80.0
B 10 245 41152 509.59 407 398 80.0
B 12 111 9703 116.35 407 398 80.0
C 3 233 465149 4928.2 392 395 94.3
C 0 10 113945 1204.07 392 395 94.3
C 14 238 67574 712.36 392 395 94.3
D 8 195 1312251 13584.22 400 389 96.6
D 2 250 39524 405.24 400 389 96.6
D 13 249 18214 184.58 400 389 96.6

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