ASTROSAT CZTI

Data Quality Report

Orbit 08403

Creation date: 2024-06-27T15:32:22.485354
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/AS1G07_027T01_9000001180_08403cztM0_level2.evt modeM0/AS1G07_027T01_9000001180_08403cztM0_level2_quad_clean.evt
Size (bytes)680,420,160151,776,000
Size648.9 MB 144.7 MB
Events in quadrant A4,844,818975,227
Events in quadrant B5,268,977979,556
Events in quadrant C4,680,022983,471
Events in quadrant D5,115,390946,213

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212063
B0222552
C0208132
D0223422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10285510.495868%
B10285820.797278%
C10285280.272241%
D102851291.254254%

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 11740 10287 9 9 0.08% 0.09%
B 11740 10287 15 15 0.13% 0.15%
C 11740 10286 0 0 0.00% 0.00%
D 11740 10287 79 79 0.67% 0.77%

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 5 16 97633 379.44 1230 1206 254.1
A 15 174 14657 52.93 1230 1206 254.1
A 0 226 11381 40.04 1230 1206 254.1
B 0 214 145443 616.63 1232 1206 233.9
B 4 48 124501 527.1 1232 1206 233.9
B 5 255 60135 251.93 1232 1206 233.9
C 13 61 8964 27.98 1195 1205 277.3
C 8 128 7847 23.95 1195 1205 277.3
C 12 4 5700 16.21 1195 1205 277.3
D 4 95 212700 675.9 1175 1152 313.0
D 7 71 86738 273.45 1175 1152 313.0
D 2 14 71223 223.88 1175 1152 313.0

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