ASTROSAT CZTI

Data Quality Report

Orbit 06633

Creation date: 2024-06-27T15:09:33.083413
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/AS1A02_082T01_9000000898_06633cztM0_level2.evt modeM0/AS1A02_082T01_9000000898_06633cztM0_level2_quad_clean.evt
Size (bytes)589,512,96087,073,920
Size562.2 MB 83.0 MB
Events in quadrant A3,627,685533,776
Events in quadrant B4,168,329532,503
Events in quadrant C3,652,861526,235
Events in quadrant D5,881,934508,108

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162204
B0175543
C0162833
D0229663

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76962302.988565%
B76964045.249480%
C76962413.131497%
D76965356.951663%

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 8501 7699 0 0 0.00% 0.00%
B 8501 7699 96 96 1.13% 1.25%
C 8501 7699 0 0 0.00% 0.00%
D 8501 7699 254 254 2.99% 3.30%

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 15 13831 67.16 938 917 192.3
A 0 226 8856 41.29 938 917 192.3
A 12 194 8452 39.18 938 917 192.3
B 4 81 376816 2027.44 939 914 185.4
B 0 219 126325 676.41 939 914 185.4
B 12 111 20240 104.24 939 914 185.4
C 8 128 22022 97.02 921 923 217.5
C 9 247 15176 65.54 921 923 217.5
C 8 112 8661 35.58 921 923 217.5
D 2 33 1222900 5440.54 911 881 224.6
D 8 195 1141803 5079.48 911 881 224.6
D 2 14 28786 124.24 911 881 224.6

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