ASTROSAT CZTI

Data Quality Report

Orbit 06301

Creation date: 2024-06-27T15:05:37.987460
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_168T25_9000000830_06301cztM0_level2.evt modeM0/AS1G06_168T25_9000000830_06301cztM0_level2_quad_clean.evt
Size (bytes)465,696,00059,978,880
Size444.1 MB 57.2 MB
Events in quadrant A2,793,521391,553
Events in quadrant B2,712,803397,156
Events in quadrant C2,009,648402,798
Events in quadrant D6,289,353314,753

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112472
B0109371
C089731
D0217191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43931242.822672%
B43931814.120191%
C439370.159344%
D4393138431.504667%

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 4663 4393 26 26 0.56% 0.59%
B 4663 4394 112 112 2.40% 2.55%
C 4663 4394 0 0 0.00% 0.00%
D 4662 4392 1245 1245 26.71% 28.35%

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 416044 3777.53 523 510 110.0
A 13 251 155104 1405.38 523 510 110.0
A 15 236 121192 1097.09 523 510 110.0
B 3 64 539959 5255.11 523 512 102.7
B 4 81 69521 672.26 523 512 102.7
B 0 219 34998 335.95 523 512 102.7
C 8 128 6183 47.4 510 512 119.6
C 13 61 4147 30.38 510 512 119.6
C 9 54 3792 27.42 510 512 119.6
D 2 63 3599053 31840.37 453 438 113.0
D 12 220 701693 6204.67 453 438 113.0
D 2 14 126220 1112.91 453 438 113.0

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