ASTROSAT CZTI

Data Quality Report

Orbit 41607

Creation date: 2024-06-27T22:30:39.711502
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/AS1A12_035T02_9000005680_41607cztM0_level2.fits modeM0/AS1A12_035T02_9000005680_41607cztM0_level2_quad_clean.evt
Size (bytes)439,303,68078,068,160
Size419.0 MB 74.5 MB
Events in quadrant A2,685,674584,117
Events in quadrant B2,278,764598,016
Events in quadrant C5,871,776397,099
Events in quadrant D5,039,922437,439

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109292
B0101082
C0203872
D0184472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4945180.364004%
B4945150.303337%
C4945150830.495450%
D494590518.301314%

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 7008 4946 3 3 0.04% 0.06%
B 7008 4946 5 5 0.07% 0.10%
C 7008 4946 1304 1304 18.61% 26.36%
D 7008 4946 757 757 10.80% 15.31%

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 10 83 499168 4367.84 555 544 114.2
A 2 79 24714 211.72 555 544 114.2
A 13 254 8393 68.76 555 544 114.2
B 5 255 51096 471.11 554 539 107.3
B 0 245 27614 252.3 554 539 107.3
B 15 35 14828 133.15 554 539 107.3
C 0 15 3424166 33345.21 440 443 102.7
C 0 10 538343 5238.85 440 443 102.7
C 15 214 180964 1758.18 440 443 102.7
D 13 249 1942085 15854.0 492 477 122.5
D 2 249 608419 4964.09 492 477 122.5
D 12 79 502589 4099.94 492 477 122.5

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