ASTROSAT CZTI

Data Quality Report

Orbit 00567

Creation date: 2024-06-27T14:00:02.642380
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/AS1P01_014T06_9000000078_00567cztM0_level2.evt modeM0/AS1P01_014T06_9000000078_00567cztM0_level2_quad_clean.evt
Size (bytes)794,675,52068,633,280
Size757.9 MB 65.5 MB
Events in quadrant A6,089,952436,545
Events in quadrant B6,016,551445,107
Events in quadrant C5,319,026437,506
Events in quadrant D6,315,804415,347

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215612
B0213501
C0192871
D0222501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A489780.163365%
B489780.163365%
C489720.040841%
D4897811.654074%

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 7053 4898 155 155 2.20% 3.16%
B 7053 4898 102 102 1.45% 2.08%
C 7053 4898 35 35 0.50% 0.71%
D 7053 4898 257 257 3.64% 5.25%

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 0 238 89716 263.96 1504 1484 334.3
A 0 149 79192 232.47 1504 1484 334.3
A 15 143 62368 182.14 1504 1484 334.3
B 4 250 284954 816.17 1466 1479 347.3
B 8 4 19876 52.97 1466 1479 347.3
B 15 185 18427 48.8 1466 1479 347.3
C 5 249 46112 119.28 1335 1384 375.0
C 15 241 23374 58.64 1335 1384 375.0
C 3 159 6241 12.95 1335 1384 375.0
D 12 237 496914 1202.58 1311 1362 412.1
D 1 4 262235 633.07 1311 1362 412.1
D 13 221 104947 251.37 1311 1362 412.1

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