ASTROSAT CZTI

Data Quality Report

Orbit 11080

Creation date: 2024-06-27T16:08:01.018191
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_028T01_9000001618_11080cztM0_level2.evt modeM0/AS1G08_028T01_9000001618_11080cztM0_level2_quad_clean.evt
Size (bytes)798,111,360113,693,760
Size761.1 MB 108.4 MB
Events in quadrant A5,643,752693,555
Events in quadrant B6,035,562696,627
Events in quadrant C4,495,638689,941
Events in quadrant D7,298,571648,841

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236512
B0247191
C0208361
D0285891

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02080
B02080
C02080
D02080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10306540.523967%
B103062652.571318%
C10306180.174656%
D103066766.559286%

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 10761 10307 0 0 0.00% 0.00%
B 10761 10307 139 139 1.29% 1.35%
C 10761 10307 0 0 0.00% 0.00%
D 10761 10307 605 605 5.62% 5.87%

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 1070496 4441.26 1181 1154 240.8
A 11 29 26724 106.2 1181 1154 240.8
A 0 226 10705 39.67 1181 1154 240.8
B 4 239 1105942 4903.91 1178 1148 225.3
B 15 204 153350 675.59 1178 1148 225.3
B 0 219 69861 305.0 1178 1148 225.3
C 8 128 9591 31.62 1148 1152 266.9
C 13 61 8441 27.31 1148 1152 266.9
C 8 112 5998 18.16 1148 1152 266.9
D 10 253 1753592 6573.25 1106 1074 266.6
D 1 52 392632 1468.63 1106 1074 266.6
D 8 195 381192 1425.73 1106 1074 266.6

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