ASTROSAT CZTI

Data Quality Report

Orbit 08062

Creation date: 2024-06-27T15:27:27.511328
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_055T01_9000001114_08062cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08062cztM0_level2_quad_clean.evt
Size (bytes)436,803,84096,071,040
Size416.6 MB 91.6 MB
Events in quadrant A3,024,562613,128
Events in quadrant B3,537,417627,287
Events in quadrant C3,086,360638,024
Events in quadrant D3,164,072603,482

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130033
B0146982
C0131342
D0134372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6127350.571242%
B61271292.105435%
C6127320.522278%
D6127530.865024%

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 7512 6129 0 0 0.00% 0.00%
B 7512 6129 47 47 0.63% 0.77%
C 7512 6129 0 0 0.00% 0.00%
D 7512 6129 18 18 0.24% 0.29%

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 0 226 7431 42.03 785 769 158.5
A 12 194 6837 38.29 785 769 158.5
A 13 254 3719 18.61 785 769 158.5
B 4 239 268130 1799.09 794 776 148.6
B 11 51 102951 687.56 794 776 148.6
B 4 81 32584 214.04 794 776 148.6
C 1 16 17523 93.34 786 791 179.3
C 13 61 6032 29.24 786 791 179.3
C 8 222 3014 12.4 786 791 179.3
D 1 52 80965 424.59 776 754 188.9
D 1 83 73360 384.33 776 754 188.9
D 2 234 20398 103.98 776 754 188.9

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