ASTROSAT CZTI

Data Quality Report

Orbit 29084

Creation date: 2024-06-27T20:00:24.560514
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/AS1T03_275T01_9000004180_29084cztM0_level2.evt modeM0/AS1T03_275T01_9000004180_29084cztM0_level2_quad_clean.evt
Size (bytes)392,984,64070,611,840
Size374.8 MB 67.3 MB
Events in quadrant A2,409,770457,331
Events in quadrant B2,502,922464,596
Events in quadrant C2,459,848442,032
Events in quadrant D4,186,680421,348

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103041
B0105491
C0103421
D0158521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5028150.298329%
B5028500.994431%
C5028470.934765%
D50284198.333333%

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 5378 5029 0 0 0.00% 0.00%
B 5378 5029 9 9 0.17% 0.18%
C 5378 5028 0 0 0.00% 0.00%
D 5378 5028 330 330 6.14% 6.56%

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 6 9154 67.46 621 609 126.7
A 13 254 8444 61.86 621 609 126.7
A 3 137 6019 42.71 621 609 126.7
B 5 172 29008 241.14 617 601 117.8
B 10 246 18145 148.92 617 601 117.8
B 12 111 14465 117.69 617 601 117.8
C 14 238 95536 669.12 598 602 141.9
C 3 233 14328 96.74 598 602 141.9
C 2 114 11963 80.07 598 602 141.9
D 1 52 1227694 8801.61 582 567 139.4
D 8 195 579529 4152.63 582 567 139.4
D 2 250 131682 940.43 582 567 139.4

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