ASTROSAT CZTI

Data Quality Report

Orbit 22636

Creation date: 2024-06-27T18:43:51.540394
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_112T01_9000003360_22636cztM0_level2.evt modeM0/AS1A07_112T01_9000003360_22636cztM0_level2_quad_clean.evt
Size (bytes)437,676,48094,495,680
Size417.4 MB 90.1 MB
Events in quadrant A3,145,517615,331
Events in quadrant B3,183,530628,597
Events in quadrant C3,192,643600,935
Events in quadrant D3,315,195587,333

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130031
B0130831
C0131201
D0136311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6151570.926679%
B6152641.040312%
C6152881.430429%
D6152901.462939%

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 7346 6152 0 0 0.00% 0.00%
B 7347 6153 1 1 0.01% 0.02%
C 7347 6153 1 1 0.01% 0.02%
D 7347 6153 40 40 0.54% 0.65%

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 9223 52.08 814 801 161.7
A 11 47 7680 42.54 814 801 161.7
A 0 226 6972 38.16 814 801 161.7
B 12 111 17699 112.61 801 783 150.2
B 11 111 15885 100.53 801 783 150.2
B 14 111 13662 85.73 801 783 150.2
C 14 238 124509 688.94 779 788 179.6
C 0 10 19959 106.75 779 788 179.6
C 10 22 8408 42.43 779 788 179.6
D 1 52 122260 640.27 791 770 189.7
D 12 227 84939 443.58 791 770 189.7
D 13 249 60898 316.88 791 770 189.7

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