ASTROSAT CZTI

Data Quality Report

Orbit 14006

Creation date: 2024-06-27T16:49:02.798223
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_064T01_9000002070_14006cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14006cztM0_level2_quad_clean.evt
Size (bytes)494,703,36086,166,720
Size471.8 MB 82.2 MB
Events in quadrant A3,379,501539,945
Events in quadrant B3,670,961538,829
Events in quadrant C3,495,147530,993
Events in quadrant D3,963,199513,990

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145313
B0152802
C0146002
D0163362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69681091.564294%
B69681562.238806%
C6968831.191160%
D69681522.181401%

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 8839 6971 0 0 0.00% 0.00%
B 8839 6971 56 56 0.63% 0.80%
C 8839 6971 5 5 0.06% 0.07%
D 8839 6971 66 66 0.75% 0.95%

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 23837 130.0 864 844 176.9
A 1 162 11476 60.11 864 844 176.9
A 2 79 9487 48.87 864 844 176.9
B 10 16 167000 1016.3 855 834 163.5
B 3 64 39022 233.57 855 834 163.5
B 0 189 34207 204.12 855 834 163.5
C 3 233 220948 1136.22 831 835 193.7
C 0 207 29771 149.37 831 835 193.7
C 13 61 5917 26.23 831 835 193.7
D 1 52 286278 1437.71 827 804 198.6
D 13 189 220705 1107.47 827 804 198.6
D 7 80 119909 599.84 827 804 198.6

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