ASTROSAT CZTI

Data Quality Report

Orbit 13533

Creation date: 2024-06-27T16:42:13.675673
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/AS1T02_038T01_9000001994_13533cztM0_level2.evt modeM0/AS1T02_038T01_9000001994_13533cztM0_level2_quad_clean.evt
Size (bytes)117,639,36027,348,480
Size112.2 MB 26.1 MB
Events in quadrant A833,822184,941
Events in quadrant B826,084185,963
Events in quadrant C971,467183,129
Events in quadrant D837,978173,776

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034582
B034461
C039521
D035001

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A133780.598355%
B133790.673149%
C1337151.121915%
D133720.149589%

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 1338 1338 0 0 0.00% 0.00%
B 1338 1338 3 3 0.22% 0.22%
C 1338 1338 6 6 0.45% 0.45%
D 1338 1338 1 1 0.07% 0.07%

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 1 162 7476 159.22 212 210 45.6
A 14 238 3973 82.46 212 210 45.6
A 1 178 2532 50.88 212 210 45.6
B 4 142 7946 186.31 206 203 41.6
B 0 230 7175 167.76 206 203 41.6
B 12 111 4074 93.14 206 203 41.6
C 3 233 188462 3884.73 200 203 48.5
C 13 61 1429 25.3 200 203 48.5
C 7 238 481 5.74 200 203 48.5
D 8 195 55944 1093.23 203 198 51.0
D 13 104 8985 172.32 203 198 51.0
D 2 14 4544 85.23 203 198 51.0

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