ASTROSAT CZTI

Data Quality Report

Orbit 24047

Creation date: 2024-06-27T19:01:31.959605
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/AS1A07_165T01_9000003558_24047cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24047cztM0_level2_quad_clean.evt
Size (bytes)588,453,120133,496,640
Size561.2 MB 127.3 MB
Events in quadrant A3,269,573906,654
Events in quadrant B3,695,143920,075
Events in quadrant C3,538,755882,540
Events in quadrant D6,839,406841,863

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145081
B0153111
C0147281
D0252651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7070751.060820%
B70711572.220337%
C70711111.569792%
D70713384.780088%

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 7330 7071 0 0 0.00% 0.00%
B 7331 7072 21 21 0.29% 0.30%
C 7331 7072 1 1 0.01% 0.01%
D 7331 7072 194 194 2.65% 2.74%

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 12299 67.79 843 823 169.3
A 3 1 8629 46.11 843 823 169.3
A 0 226 7265 38.05 843 823 169.3
B 0 197 239804 1526.68 836 817 156.5
B 0 189 56912 358.34 836 817 156.5
B 5 172 45896 287.97 836 817 156.5
C 7 247 268795 1439.54 802 807 186.2
C 14 238 128457 685.69 802 807 186.2
C 0 239 12276 61.61 802 807 186.2
D 8 195 2913021 14817.44 806 781 196.5
D 1 52 772508 3926.54 806 781 196.5
D 12 233 53938 270.46 806 781 196.5

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