ASTROSAT CZTI

Data Quality Report

Orbit 17104

Creation date: 2024-06-27T17:32:10.075751
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_004T03_9000002538_17104cztM0_level2.evt modeM0/AS1A05_004T03_9000002538_17104cztM0_level2_quad_clean.evt
Size (bytes)638,544,960104,160,960
Size609.0 MB 99.3 MB
Events in quadrant A4,105,604652,193
Events in quadrant B4,293,922655,328
Events in quadrant C4,453,520628,467
Events in quadrant D5,886,056604,625

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01820
B01820
C01820
D01820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182432
B0185312
C0186574
D0235262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8838760.859923%
B8838891.007015%
C88361181.335446%
D88373023.417449%

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 10788 8840 0 0 0.00% 0.00%
B 10788 8839 5 5 0.05% 0.06%
C 10787 8838 0 0 0.00% 0.00%
D 10787 8838 203 203 1.88% 2.30%

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 4 2 13914 59.71 1063 1038 215.6
A 0 226 9397 38.76 1063 1038 215.6
A 12 189 8042 32.48 1063 1038 215.6
B 0 197 72632 352.7 1061 1036 203.0
B 12 111 23375 110.05 1061 1036 203.0
B 11 111 20313 94.96 1061 1036 203.0
C 3 233 271320 1125.14 1024 1030 240.2
C 14 238 155350 642.39 1024 1030 240.2
C 9 54 20128 79.5 1024 1030 240.2
D 5 222 1301190 5191.26 1029 998 250.5
D 15 0 244712 973.07 1029 998 250.5
D 10 70 182370 724.16 1029 998 250.5

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