ASTROSAT CZTI

Data Quality Report

Orbit 12301

Creation date: 2024-06-27T16:25:08.930536
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/AS1A04_183T02_9000001816_12301cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12301cztM0_level2_quad_clean.evt
Size (bytes)557,570,88067,072,320
Size531.7 MB 64.0 MB
Events in quadrant A5,264,741384,952
Events in quadrant B4,792,134407,877
Events in quadrant C3,177,630407,441
Events in quadrant D3,220,053385,967

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199823
B0183752
C0134742
D0137332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63683345.244975%
B63684246.658291%
C6368490.769472%
D6368350.549623%

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 7599 6369 75 75 0.99% 1.18%
B 7599 6370 257 257 3.38% 4.03%
C 7599 6370 17 17 0.22% 0.27%
D 7599 6370 15 15 0.20% 0.24%

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 23 1690856 10563.72 794 779 160.0
A 1 162 154688 962.0 794 779 160.0
A 0 226 116002 720.19 794 779 160.0
B 4 239 1511160 10012.6 797 778 150.8
B 0 85 48200 314.37 797 778 150.8
B 3 64 41061 267.04 797 778 150.8
C 14 234 82824 452.44 784 790 181.3
C 15 208 28022 150.19 784 790 181.3
C 13 61 5925 28.32 784 790 181.3
D 11 129 77115 412.99 773 752 184.9
D 13 104 46408 246.92 773 752 184.9
D 8 195 39070 207.23 773 752 184.9

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