ASTROSAT CZTI

Data Quality Report

Orbit 24054

Creation date: 2024-06-27T19:01:35.236472
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/AS1A07_165T01_9000003558_24054cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24054cztM0_level2_quad_clean.evt
Size (bytes)426,706,560126,754,560
Size406.9 MB 120.9 MB
Events in quadrant A2,956,477860,398
Events in quadrant B3,044,599879,734
Events in quadrant C3,109,960846,977
Events in quadrant D3,399,455828,640

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125841
B0127881
C0129701
D0139061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6063200.329870%
B6064220.362797%
C6064701.154354%
D6064280.461741%

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 7188 6064 0 0 0.00% 0.00%
B 7189 6065 0 0 0.00% 0.00%
C 7189 6065 0 0 0.00% 0.00%
D 7189 6065 10 10 0.14% 0.16%

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 13 254 10451 64.49 764 749 150.4
A 2 250 6729 39.75 764 749 150.4
A 0 226 6636 39.13 764 749 150.4
B 0 189 21372 144.81 764 745 142.4
B 12 111 16485 110.5 764 745 142.4
B 11 111 14543 96.87 764 745 142.4
C 14 238 118574 679.14 746 752 173.5
C 7 247 77328 441.39 746 752 173.5
C 13 61 5141 25.3 746 752 173.5
D 8 195 426206 2327.14 756 735 182.8
D 1 52 75605 409.51 756 735 182.8
D 2 234 26042 138.42 756 735 182.8

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