ASTROSAT CZTI

Data Quality Report

Orbit 07368

Creation date: 2024-06-27T15:19:00.654705
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/AS1G06_157T02_9000001008_07368cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07368cztM0_level2_quad_clean.evt
Size (bytes)472,078,080100,958,400
Size450.2 MB 96.3 MB
Events in quadrant A3,352,640651,558
Events in quadrant B3,080,453677,911
Events in quadrant C3,313,816669,083
Events in quadrant D4,131,607628,664

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139071
B0132751
C0136971
D0165261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6170741.199352%
B6170260.421394%
C6170330.534846%
D61701362.204214%

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 7540 6171 35 35 0.46% 0.57%
B 7540 6171 1 1 0.01% 0.02%
C 7540 6171 4 4 0.05% 0.06%
D 7540 6171 101 101 1.34% 1.64%

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 15 234 237510 1543.66 754 738 153.4
A 14 111 100630 651.26 754 738 153.4
A 15 239 97496 630.83 754 738 153.4
B 0 214 65527 445.52 772 756 145.4
B 12 111 14430 94.05 772 756 145.4
B 11 111 11414 73.31 772 756 145.4
C 9 68 336694 1932.32 752 757 173.9
C 1 16 34400 193.52 752 757 173.9
C 8 229 11582 62.27 752 757 173.9
D 1 52 585000 3208.34 739 717 182.1
D 2 216 354412 1942.16 739 717 182.1
D 14 34 244801 1340.28 739 717 182.1

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