ASTROSAT CZTI

Data Quality Report

Orbit 42202

Creation date: 2024-06-27T22:38:28.993975
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_089T01_9000005776_42202cztM0_level2.fits modeM0/AS1A12_089T01_9000005776_42202cztM0_level2_quad_clean.evt
Size (bytes)309,052,80084,864,960
Size294.7 MB 80.9 MB
Events in quadrant A3,001,241568,509
Events in quadrant B2,442,926586,982
Events in quadrant C2,389,421552,811
Events in quadrant D3,200,853496,812

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121482
B0109582
C0104652
D0132302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5204480.922367%
B5204390.749424%
C520440.076864%
D52041613.093774%

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 7027 5205 58 58 0.83% 1.11%
B 7027 5205 33 33 0.47% 0.63%
C 7027 5205 0 0 0.00% 0.00%
D 7027 5205 144 144 2.05% 2.77%

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 520072 4444.28 561 549 116.9
A 15 223 191980 1637.6 561 549 116.9
A 15 222 44473 375.75 561 549 116.9
B 7 202 130833 1191.36 562 546 109.4
B 0 229 39086 352.42 562 546 109.4
B 15 35 30083 270.09 562 546 109.4
C 15 214 217624 1671.93 549 553 129.8
C 15 159 18495 138.19 549 553 129.8
C 7 220 6328 44.48 549 553 129.8
D 1 52 619290 4672.6 536 519 132.4
D 13 249 153055 1151.86 536 519 132.4
D 12 6 73407 550.41 536 519 132.4

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