ASTROSAT CZTI

Data Quality Report

Orbit 24062

Creation date: 2024-06-27T19:01:41.553820
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_24062cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24062cztM0_level2_quad_clean.evt
Size (bytes)523,586,880143,565,120
Size499.3 MB 136.9 MB
Events in quadrant A3,504,980970,288
Events in quadrant B3,793,458981,650
Events in quadrant C4,215,657936,816
Events in quadrant D3,829,133933,373

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154872
B0162642
C0172652
D0166013

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7565500.660939%
B75651141.506940%
C7565901.189689%
D7564390.515600%

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 7915 7566 0 0 0.00% 0.00%
B 7915 7566 11 11 0.14% 0.15%
C 7915 7566 2 2 0.03% 0.03%
D 7914 7565 26 26 0.33% 0.34%

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 12667 64.6 905 884 182.4
A 2 250 11027 55.61 905 884 182.4
A 0 226 7751 37.65 905 884 182.4
B 0 189 96400 563.17 897 875 169.6
B 0 245 33776 193.97 897 875 169.6
B 5 172 31989 183.43 897 875 169.6
C 7 247 696567 3483.84 857 861 199.7
C 14 238 137257 683.02 857 861 199.7
C 0 239 25727 124.52 857 861 199.7
D 8 195 228018 1071.36 873 845 212.0
D 7 238 67454 314.13 873 845 212.0
D 1 52 62530 290.91 873 845 212.0

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