tanso.center — carbon observation archive

C-0042

diamond lattice

tetrahedral sp³ network. each carbon bonded to four neighbours at 1.544 Å. hardest known natural material, mohs 10.0. transparent, isotropic, refractive index 2.418.

density3.515 g/cm³ band gap5.470 eV

C-0043

co₂ concentration

atmospheric reading, observatory altitude 3397 m. last sample 2026-03-27T11:53Z.

000.00 ppm

C-0044

graphene sheet

single-atom sp² hexagonal lattice. tensile strength 130 GPa, electron mobility 2.0×10⁵ cm²/V·s. observation log 22.

C-0045

fullerene C₆₀

truncated icosahedron. 60 vertices, 90 edges, 12 pentagons, 20 hexagons. discovered 1985, kroto, curl & smalley.

vertices60 edges90 faces32

C-0046

methane trace

CH₄ atmospheric mixing ratio, 30-day rolling mean.

0000.00 ppb

C-0047

graphite

stacked graphene planes, weak van der waals interlayer bonding. anisotropic conductor, lubricant, electrode material.

density2.267 g/cm³ interlayer3.354 Å

C-0048

atmospheric pressure

station barometric series. 14-day window, sample interval 6 minutes. nominal envelope shaded.

current684.21 hPa σ2.34

C-0049

observation log

2026-03-27T11:53Z421.84 ppm
2026-03-27T05:53Z421.71 ppm
2026-03-26T23:53Z421.66 ppm
2026-03-26T17:53Z421.62 ppm
2026-03-26T11:53Z421.58 ppm
2026-03-26T05:53Z421.49 ppm

C-0050

lonsdaleite

hexagonal diamond polymorph. formed from graphite under shock compression. theoretically 58% harder than cubic diamond.

structurehexagonal stackingABAB

C-0051

signal quality

downlink integrity, last 24 h. radial arc representation.

C-0052

carbon nanotube

rolled graphene cylinder. chiral vector (n,m) determines metallicity. tensile strength approaching theoretical limits.

C-0053

¹³C / ¹²C ratio

δ¹³C deviation against VPDB standard.

-0.00 ‰

C-0054

sensor calibration

last reference gas verification, drift compensation table.

last cal2026-03-21 drift+0.07 ppm next due2026-04-21

C-0055

bond length matrix

dot-matrix density representation of c-c bond length distributions across allotropes (1.40 – 1.55 Å).

samples144 range1.40 – 1.55 Å

C-0056

last transmission

downlink window, ground station SAGAMIHARA.

00:00:00

elapsed since last packet

C-0057

crystal structure

face-centered cubic unit cell schematic. lattice parameter a = 3.567 Å.

C-0058

env. status

temp−14.2 °C humidity42 % wind3.8 m/s visibilitynominal

C-0059

electron configuration

carbon, Z=6. ground state.

1s² 2s² 2p²

term³P₀ ionization11.260 eV

C-0060

archive index

specimen catalog summary.

cataloged0042 — 0060 total19 mediaSVG / data

specimen grid