ASTROSAT CZTI

Data Quality Report

Orbit 03029

Creation date: 2024-06-27T14:23:40.764635
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/AS1G05_237T02_9000000422_03029cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03029cztM0_level2_quad_clean.evt
Size (bytes)377,216,64075,862,080
Size359.7 MB 72.3 MB
Events in quadrant A2,268,552488,063
Events in quadrant B2,447,845487,332
Events in quadrant C2,143,254499,712
Events in quadrant D4,223,644470,945

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105613
B0108572
C0102762
D0161902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5005340.679321%
B5005581.158841%
C500580.159840%
D50053677.332667%

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 7160 5005 24 24 0.34% 0.48%
B 7160 5005 53 53 0.74% 1.06%
C 7160 5005 5 5 0.07% 0.10%
D 7160 5005 396 396 5.53% 7.91%

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 14 249 112236 1045.92 516 503 106.8
A 12 247 54655 506.91 516 503 106.8
A 0 50 34524 318.47 516 503 106.8
B 2 249 135032 1328.65 526 513 101.2
B 14 167 63131 618.48 526 513 101.2
B 0 219 62098 608.28 526 513 101.2
C 6 80 76641 639.93 513 515 119.0
C 1 192 23821 195.92 513 515 119.0
C 1 16 17518 142.93 513 515 119.0
D 13 114 1720452 13672.69 494 482 125.8
D 10 237 200351 1588.83 494 482 125.8
D 10 213 115699 915.9 494 482 125.8

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