ASTROSAT CZTI

Data Quality Report

Orbit 21084

Creation date: 2024-06-27T18:23:17.106183
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/AS1A05_075T05_9000003116_21084cztM0_level2.evt modeM0/AS1A05_075T05_9000003116_21084cztM0_level2_quad_clean.evt
Size (bytes)126,993,60025,174,080
Size121.1 MB 24.0 MB
Events in quadrant A636,521174,924
Events in quadrant B775,973172,844
Events in quadrant C614,300165,621
Events in quadrant D1,723,368145,985

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027980
B032490
C027450
D060580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A136930.219138%
B1369292.118335%
C136920.146092%
D137030322.116788%

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 1369 1369 2 2 0.15% 0.15%
B 1369 1369 14 14 1.02% 1.02%
C 1369 1369 0 0 0.00% 0.00%
D 1370 1370 266 266 19.42% 19.42%

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 15 192 23599 700.12 157 153 33.5
A 13 254 2170 60.23 157 153 33.5
A 3 1 1948 53.6 157 153 33.5
B 7 220 134625 4285.33 154 151 31.4
B 0 190 16167 510.39 154 151 31.4
B 0 219 8501 266.09 154 151 31.4
C 14 238 22838 606.98 151 151 37.4
C 13 61 1048 24.0 151 151 37.4
C 7 247 390 6.39 151 151 37.4
D 2 14 541044 14924.64 143 139 36.2
D 1 239 342342 9442.06 143 139 36.2
D 1 52 217739 6004.02 143 139 36.2

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