ASTROSAT CZTI

Data Quality Report

Orbit 22407

Creation date: 2024-06-27T18:40:35.203239
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_156T01_9000003312_22407cztM0_level2.evt modeM0/AS1T03_156T01_9000003312_22407cztM0_level2_quad_clean.evt
Size (bytes)430,416,00096,341,760
Size410.5 MB 91.9 MB
Events in quadrant A3,021,301632,876
Events in quadrant B3,150,663653,691
Events in quadrant C3,159,227618,336
Events in quadrant D3,292,082589,588

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127362
B0130302
C0130512
D0137892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6057310.511805%
B6057641.056629%
C6057981.617963%
D6056280.462351%

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 7412 6058 0 0 0.00% 0.00%
B 7412 6058 5 5 0.07% 0.08%
C 7412 6058 8 8 0.11% 0.13%
D 7411 6057 5 5 0.07% 0.08%

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 9787 58.51 782 767 154.1
A 0 226 6712 38.56 782 767 154.1
A 3 1 6322 36.03 782 767 154.1
B 3 64 31212 207.49 791 773 146.7
B 12 111 16870 109.73 791 773 146.7
B 0 190 15906 103.16 791 773 146.7
C 14 238 122982 692.95 763 770 176.4
C 10 22 46366 258.53 763 770 176.4
C 0 10 10159 53.24 763 770 176.4
D 12 227 185656 1015.43 759 739 182.1
D 1 52 143917 786.23 759 739 182.1
D 13 104 29328 156.99 759 739 182.1

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