ASTROSAT CZTI

Data Quality Report

Orbit 14707

Creation date: 2024-06-27T16:58:43.492581
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/AS1G08_057T09_9000002174_14707cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14707cztM0_level2_quad_clean.evt
Size (bytes)440,674,560101,750,400
Size420.3 MB 97.0 MB
Events in quadrant A3,151,937669,921
Events in quadrant B3,134,175661,928
Events in quadrant C3,583,875664,803
Events in quadrant D3,053,939651,530

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133823
B0132462
C0146362
D0132012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6210480.772947%
B6210651.046699%
C6210731.175523%
D6210490.789050%

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 7426 6212 2 2 0.03% 0.03%
B 7426 6211 3 3 0.04% 0.05%
C 7426 6211 0 0 0.00% 0.00%
D 7426 6212 2 2 0.03% 0.03%

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 12 189 42016 259.82 792 776 158.7
A 3 1 29154 178.78 792 776 158.7
A 8 15 14045 83.6 792 776 158.7
B 0 214 23678 155.98 786 768 146.9
B 10 247 17732 115.49 786 768 146.9
B 12 111 16854 109.52 786 768 146.9
C 3 233 536639 3014.86 781 788 177.7
C 13 61 5390 25.89 781 788 177.7
C 3 234 2151 7.67 781 788 177.7
D 13 172 28213 133.02 777 763 206.4
D 2 152 22244 104.1 777 763 206.4
D 2 234 21921 102.53 777 763 206.4

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