ASTROSAT CZTI

Data Quality Report

Orbit 01363

Creation date: 2024-06-27T14:11:33.970068
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/AS1G04_014T02_9000000232_01363cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01363cztM0_level2_quad_clean.evt
Size (bytes)1,037,119,68096,920,640
Size989.1 MB 92.4 MB
Events in quadrant A7,838,769627,323
Events in quadrant B8,943,410630,923
Events in quadrant C7,325,814619,890
Events in quadrant D6,871,164604,857

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0279082
B0311591
C0264181
D0250991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6482200.308547%
B64821011.558161%
C648230.046282%
D6482390.601666%

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 7232 6483 225 225 3.11% 3.47%
B 7232 6482 574 574 7.94% 8.86%
C 7232 6483 144 144 1.99% 2.22%
D 7232 6483 204 204 2.82% 3.15%

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 15 127 226196 482.68 1939 1959 464.6
A 4 32 153967 327.2 1939 1959 464.6
A 15 233 10026 17.36 1939 1959 464.6
B 8 4 705835 1466.4 2031 2038 479.9
B 12 52 239740 495.27 2031 2038 479.9
B 4 222 71611 144.96 2031 2038 479.9
C 15 241 200458 393.41 1813 1870 504.8
C 3 111 19542 35.01 1813 1870 504.8
C 3 79 15794 27.58 1813 1870 504.8
D 9 53 143159 262.56 1743 1801 538.4
D 13 73 131119 240.2 1743 1801 538.4
D 5 82 40555 71.98 1743 1801 538.4

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