ASTROSAT CZTI

Data Quality Report

Orbit 16243

Creation date: 2024-06-27T17:19:51.267711
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/AS1T02_112T01_9000002390_16243cztM0_level2.evt modeM0/AS1T02_112T01_9000002390_16243cztM0_level2_quad_clean.evt
Size (bytes)559,589,760106,367,040
Size533.7 MB 101.4 MB
Events in quadrant A3,946,641682,018
Events in quadrant B4,100,605689,741
Events in quadrant C3,656,009686,135
Events in quadrant D4,761,997668,373

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162002
B0167381
C0153461
D0189771

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71032333.280304%
B71031341.886527%
C7103881.238913%
D71032884.054625%

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 7774 7105 109 109 1.40% 1.53%
B 7774 7105 43 43 0.55% 0.61%
C 7774 7105 1 1 0.01% 0.01%
D 7774 7105 207 207 2.66% 2.91%

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 15 174 527622 2954.15 881 864 178.3
A 8 247 16789 89.31 881 864 178.3
A 13 248 9273 47.16 881 864 178.3
B 7 220 319866 1895.46 879 859 168.3
B 0 198 86955 511.56 879 859 168.3
B 0 219 55701 325.86 879 859 168.3
C 3 233 214956 1084.61 844 849 197.4
C 14 238 128942 648.89 844 849 197.4
C 0 207 17136 82.51 844 849 197.4
D 1 52 1234655 5913.48 856 833 208.6
D 13 112 230958 1102.95 856 833 208.6
D 10 70 30123 140.38 856 833 208.6

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