ASTROSAT CZTI

Data Quality Report

Orbit 09463

Creation date: 2024-06-27T15:46:28.128674
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/AS1A03_051T01_9000001346_09463cztM0_level2.evt modeM0/AS1A03_051T01_9000001346_09463cztM0_level2_quad_clean.evt
Size (bytes)175,628,16035,046,720
Size167.5 MB 33.4 MB
Events in quadrant A1,295,492225,481
Events in quadrant B1,240,313227,896
Events in quadrant C1,201,773224,563
Events in quadrant D1,416,471211,280

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065291228
B063061068
C061761029
D071611411

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121
B0120
C0120
D0122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05816
B05812
C05814
D05814

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2378461.934399%
B2404421.747088%
C2416240.993377%
D2378753.153911%

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 4029 2738 0 0 0.00% 0.00%
B 4033 2747 0 0 0.00% 0.00%
C 4031 2754 0 0 0.00% 0.00%
D 4027 2749 27 27 0.67% 0.98%

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 8 5 27823 425.69 314 307 64.6
A 1 162 19523 297.28 314 307 64.6
A 8 15 14466 219.05 314 307 64.6
B 12 111 6725 104.19 315 308 61.6
B 11 111 5365 82.11 315 308 61.6
B 0 187 4495 67.98 315 308 61.6
C 5 128 2366 28.31 307 308 72.7
C 13 61 2242 26.61 307 308 72.7
C 14 234 998 9.49 307 308 72.7
D 13 104 122074 1612.09 301 292 75.5
D 12 233 75567 996.45 301 292 75.5
D 1 52 36208 475.44 301 292 75.5

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