ASTROSAT CZTI

Data Quality Report

Orbit 04665

Creation date: 2024-06-27T14:45:21.032106
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/AS1G05_167T01_9000000584_04665cztM0_level2.evt modeM0/AS1G05_167T01_9000000584_04665cztM0_level2_quad_clean.evt
Size (bytes)704,701,44072,495,360
Size672.1 MB 69.1 MB
Events in quadrant A3,274,018453,205
Events in quadrant B3,465,148453,264
Events in quadrant C3,270,526450,395
Events in quadrant D10,850,469342,072

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147142
B0148821
C0147721
D0370711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71082223.123241%
B71082233.137310%
C71081131.589758%
D7108246734.707372%

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 7123 7109 0 0 0.00% 0.00%
B 7123 7109 0 0 0.00% 0.00%
C 7123 7109 2 2 0.03% 0.03%
D 7123 7108 2402 2402 33.72% 33.79%

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 14 8396 43.09 847 827 175.7
A 12 194 8288 42.47 847 827 175.7
A 0 226 8238 42.19 847 827 175.7
B 15 204 82870 492.17 855 835 166.7
B 14 167 47150 277.87 855 835 166.7
B 0 219 19196 110.16 855 835 166.7
C 9 54 16959 83.3 826 830 193.6
C 8 128 6823 30.95 826 830 193.6
C 13 61 6780 30.73 826 830 193.6
D 8 112 8170890 53454.9 628 610 152.8
D 13 239 88081 572.29 628 610 152.8
D 2 136 52373 338.66 628 610 152.8

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