ASTROSAT CZTI

Data Quality Report

Orbit 44092

Creation date: 2024-06-27T22:59:16.858134
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/AS1A13_012T01_9000005942_44092cztM0_level2.fits modeM0/AS1A13_012T01_9000005942_44092cztM0_level2_quad_clean.evt
Size (bytes)430,764,48059,333,760
Size410.8 MB 56.6 MB
Events in quadrant A7,783,333167,131
Events in quadrant B1,964,998480,709
Events in quadrant C1,956,932459,058
Events in quadrant D3,904,535386,925

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261001
B087571
C088621
D0146231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4299284766.224703%
B4299601.395673%
C4299350.814143%
D430048711.325581%

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 5003 4297 2287 2287 45.71% 53.22%
B 5004 4300 0 0 0.00% 0.00%
C 5004 4300 0 0 0.00% 0.00%
D 5005 4301 298 298 5.95% 6.93%

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 15 223 6318180 110218.62 272 268 57.3
A 10 83 391484 6824.93 272 268 57.3
A 7 3 8636 145.98 272 268 57.3
B 12 111 12916 124.24 493 478 100.1
B 11 111 12001 115.1 493 478 100.1
B 14 111 11921 114.3 493 478 100.1
C 3 233 22218 186.75 487 489 116.4
C 14 96 16797 140.16 487 489 116.4
C 14 254 16522 137.8 487 489 116.4
D 1 52 1122247 9565.21 463 449 117.3
D 13 249 296057 2520.56 463 449 117.3
D 5 222 255308 2173.1 463 449 117.3

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