ASTROSAT CZTI

Data Quality Report

Orbit 10206

Creation date: 2024-06-27T15:56:43.574091
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_9000001470_10206cztM0_level2.evt modeM0/AS1G07_027T01_9000001470_10206cztM0_level2_quad_clean.evt
Size (bytes)237,231,36033,454,080
Size226.2 MB 31.9 MB
Events in quadrant A1,965,615198,099
Events in quadrant B1,540,362210,738
Events in quadrant C1,436,947203,768
Events in quadrant D2,042,226192,265

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076612
B063751
C061001
D081361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A29102829.690722%
B2910903.092784%
C2910842.886598%
D29101214.158076%

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 3860 2910 139 139 3.60% 4.78%
B 3860 2911 3 3 0.08% 0.10%
C 3860 2910 0 0 0.00% 0.00%
D 3860 2910 8 8 0.21% 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 15 223 343411 4474.7 367 359 76.7
A 15 239 156853 2041.28 367 359 76.7
A 15 255 24331 312.69 367 359 76.7
B 0 214 38717 514.32 377 367 74.6
B 4 239 23874 315.26 377 367 74.6
B 12 111 8059 103.16 377 367 74.6
C 0 207 7184 79.27 366 367 86.0
C 13 61 2756 27.78 366 367 86.0
C 14 67 1086 8.36 366 367 86.0
D 13 122 191624 1995.38 360 353 95.9
D 1 52 172384 1794.67 360 353 95.9
D 8 195 169218 1761.64 360 353 95.9

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