ASTROSAT CZTI

Data Quality Report

Orbit 07670

Creation date: 2024-06-27T15:22:30.146246
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_114T01_9000001056_07670cztM0_level2.evt modeM0/AS1G06_114T01_9000001056_07670cztM0_level2_quad_clean.evt
Size (bytes)69,168,96022,754,880
Size66.0 MB 21.7 MB
Events in quadrant A501,979150,996
Events in quadrant B501,391154,565
Events in quadrant C506,293152,699
Events in quadrant D504,762144,226

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022600
B022590
C022640
D023090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112810.088652%
B112800.000000%
C112800.000000%
D112850.443262%

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 1128 1128 0 0 0.00% 0.00%
B 1128 1128 0 0 0.00% 0.00%
C 1128 1128 0 0 0.00% 0.00%
D 1128 1128 3 3 0.27% 0.27%

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 0 226 1207 38.01 130 127 28.4
A 12 194 1137 35.55 130 127 28.4
A 3 137 481 12.46 130 127 28.4
B 12 111 2468 88.59 129 127 26.4
B 11 111 1899 67.06 129 127 26.4
B 14 111 1392 47.87 129 127 26.4
C 12 4 3095 94.13 128 129 31.5
C 13 61 981 27.04 128 129 31.5
C 8 222 409 8.89 128 129 31.5
D 13 104 23609 714.9 127 124 32.9
D 5 233 3330 97.59 127 124 32.9
D 14 226 1342 37.08 127 124 32.9

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