ASTROSAT CZTI

Data Quality Report

Orbit 28321

Creation date: 2024-06-27T19:50:27.289866
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/AS1A10_102T10_9000004080_28321cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28321cztM0_level2_quad_clean.evt
Size (bytes)704,903,040100,059,840
Size672.2 MB 95.4 MB
Events in quadrant A4,226,688621,961
Events in quadrant B4,332,268629,205
Events in quadrant C4,013,905604,964
Events in quadrant D8,189,051572,769

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183260
B0184020
C0175550
D0302070

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86641171.350416%
B8664850.981071%
C8664750.865651%
D86648549.856879%

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 9239 8665 4 4 0.04% 0.05%
B 9239 8665 24 24 0.26% 0.28%
C 9239 8665 2 2 0.02% 0.02%
D 9239 8665 736 736 7.97% 8.49%

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 15 9 292317 1428.25 1017 996 204.0
A 13 254 16552 76.27 1017 996 204.0
A 3 137 9931 43.81 1017 996 204.0
B 10 245 165249 848.95 1010 982 193.5
B 10 246 51664 261.93 1010 982 193.5
B 15 33 48333 244.72 1010 982 193.5
C 14 238 157887 682.17 976 979 230.0
C 3 233 52576 224.32 976 979 230.0
C 13 61 6559 24.26 976 979 230.0
D 1 52 2922504 12901.48 947 921 226.5
D 8 195 1188210 5242.97 947 921 226.5
D 2 250 189999 834.95 947 921 226.5

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