ASTROSAT CZTI

Data Quality Report

Orbit 06132

Creation date: 2024-06-27T15:03:10.546717
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_019T01_9000000796_06132cztM0_level2.evt modeM0/AS1G06_019T01_9000000796_06132cztM0_level2_quad_clean.evt
Size (bytes)2,440,670,400419,253,120
Size2.3 GB 399.8 MB
Events in quadrant A16,813,1272,577,863
Events in quadrant B22,438,0162,555,386
Events in quadrant C15,921,0302,605,354
Events in quadrant D16,346,0662,521,482

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07418933
B09059275
C07278940
D07511052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07200
B07200
C07200
D07200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A354924061.143920%
B3548523816.709877%
C354873420.963733%
D354854041.138509%

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 38788 35505 15 15 0.04% 0.04%
B 38788 35503 1193 1193 3.08% 3.36%
C 38788 35505 1 1 0.00% 0.00%
D 38788 35507 91 91 0.23% 0.26%

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 8 15 708324 829.95 4135 4044 848.6
A 4 2 142113 162.71 4135 4044 848.6
A 0 254 42206 44.97 4135 4044 848.6
B 3 64 5776744 7294.75 4101 4000 791.4
B 15 85 307878 384.0 4101 4000 791.4
B 15 204 203687 252.33 4101 4000 791.4
C 1 16 118984 122.05 4035 4052 941.7
C 13 61 32098 29.78 4035 4052 941.7
C 8 128 19323 16.22 4035 4052 941.7
D 13 169 637857 640.0 4034 3910 990.5
D 8 195 149702 147.18 4034 3910 990.5
D 5 97 92345 89.28 4034 3910 990.5

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