ASTROSAT CZTI

Data Quality Report

Orbit 05773

Creation date: 2024-06-27T14:58:57.939248
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_002T01_9000000742_05773cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05773cztM0_level2_quad_clean.evt
Size (bytes)447,785,28075,945,600
Size427.0 MB 72.4 MB
Events in quadrant A3,201,718457,044
Events in quadrant B3,470,376465,507
Events in quadrant C3,234,904461,695
Events in quadrant D3,193,674443,181

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139273
B0144982
C0140352
D0140032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6773360.531522%
B6773831.225454%
C6773510.752990%
D6773480.708696%

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 9148 6775 0 0 0.00% 0.00%
B 9148 6775 8 8 0.09% 0.12%
C 9148 6775 0 0 0.00% 0.00%
D 9148 6775 1 1 0.01% 0.01%

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 0 226 7905 41.86 831 814 169.4
A 12 194 7894 41.79 831 814 169.4
A 7 16 3978 18.68 831 814 169.4
B 15 204 122228 764.44 846 826 158.8
B 4 81 56919 353.21 846 826 158.8
B 12 111 15198 90.5 846 826 158.8
C 9 160 11938 58.74 824 827 189.2
C 13 61 6643 30.74 824 827 189.2
C 9 176 5316 23.73 824 827 189.2
D 8 195 46995 231.36 814 789 199.7
D 2 206 24076 116.6 814 789 199.7
D 6 223 20555 98.97 814 789 199.7

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