ASTROSAT CZTI

Data Quality Report

Orbit 08585

Creation date: 2024-06-27T15:34:37.815327
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/AS1A03_102T01_9000001202_08585cztM0_level2.evt modeM0/AS1A03_102T01_9000001202_08585cztM0_level2_quad_clean.evt
Size (bytes)402,672,96094,250,880
Size384.0 MB 89.9 MB
Events in quadrant A2,832,120603,760
Events in quadrant B3,379,180618,475
Events in quadrant C2,710,399609,921
Events in quadrant D2,845,094583,205

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130122
B0142911
C0127801
D0132471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6288480.763359%
B62881462.321883%
C6288330.524809%
D6288440.699746%

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 7253 6289 6 6 0.08% 0.10%
B 7253 6289 59 59 0.81% 0.94%
C 7253 6289 0 0 0.00% 0.00%
D 7253 6289 20 20 0.28% 0.32%

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 61706 428.72 709 692 142.3
A 15 239 16677 112.32 709 692 142.3
A 13 248 8710 56.34 709 692 142.3
B 5 255 180737 1322.19 719 700 136.2
B 0 214 117199 855.57 719 700 136.2
B 10 252 107144 781.72 719 700 136.2
C 13 61 5377 29.38 694 694 159.4
C 8 222 3473 17.43 694 694 159.4
C 14 67 1916 7.67 694 694 159.4
D 7 71 101525 552.15 682 665 182.7
D 12 233 90279 490.58 682 665 182.7
D 2 234 20377 107.91 682 665 182.7

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