ASTROSAT CZTI

Data Quality Report

Orbit 25416

Creation date: 2024-06-27T19:17:25.075081
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/AS1A09_047T01_9000003714_25416cztM0_level2.evt modeM0/AS1A09_047T01_9000003714_25416cztM0_level2_quad_clean.evt
Size (bytes)497,312,640100,336,320
Size474.3 MB 95.7 MB
Events in quadrant A3,338,487666,235
Events in quadrant B3,336,912674,483
Events in quadrant C3,509,003645,451
Events in quadrant D4,464,035627,492

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136630
B0136850
C0144090
D0177880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6080460.756579%
B6080530.871711%
C60811141.874692%
D60801512.483553%

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 7355 6080 0 0 0.00% 0.00%
B 7355 6080 0 0 0.00% 0.00%
C 7356 6081 0 0 0.00% 0.00%
D 7355 6080 58 58 0.79% 0.95%

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 6 16 56613 330.35 852 838 168.8
A 13 254 8613 46.05 852 838 168.8
A 0 226 7380 38.75 852 838 168.8
B 0 229 40429 256.27 836 817 154.6
B 3 112 23597 147.37 836 817 154.6
B 12 111 18492 114.35 836 817 154.6
C 14 238 134411 715.03 816 823 186.8
C 7 247 116794 620.73 816 823 186.8
C 7 87 71326 377.37 816 823 186.8
D 8 195 744288 3731.41 828 805 199.2
D 1 52 334776 1676.14 828 805 199.2
D 2 82 107273 534.34 828 805 199.2

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